BrainPOP Lessons organized by Topic.

3D Printing

The technology that will let you build factory-quality products in your own home!

60s Folk

Learn about 1960s folk and protest music, and musicians like Dylan and Seeger!

A Wrinkle in Time

Explore every wrinkle of Madeleine L'Engle's classic science fiction tale.

ADHD

Tim and Moby talk about dealing with hyperactivity disorders and how they differ from just being distracted, impulsive, or just plain bored.

AIDS

Tim and Moby explain how HIV attacks the immune system and causes AIDS in this BrainPOP movie.

Abraham Lincoln

Meet Abraham Lincoln, the Illinois boy who became the 16th President of the United States, and was known as the Great Emancipator!

Absolute Value

Use a numberline, determine the distance from zero, and decide on positive or negative! Tim and Moby teach you about Absolute Value.

Acceleration

Mass, force, weight: This speedy animated movie gives you velocity on the rules governing acceleration and deceleration!

Acids and Bases

Why do acids eat through metal? Why does dishwashing liquid have a high pH? Tim and Moby talk acids and bases, ions and lemons.

Acne

Whether you call them zits, spots, or pimples, acne’s part of puberty! Tim and Moby show you why it happens and how to handle it.

Active Transport

Cells need nourishment, too! Tim and Moby introduce you to active transport, where substances move through gaps in a cell membrane.

Ada Lovelace

Meet Ada Lovelace, British mathematician and the first computer programmer!

Adam Smith

Don't be all laissez-faire! It's in your self-interest to meet the inventor of modern economics.

Addiction

From tolerance to abuse to withdrawal, the truth about addiction and how it affects the mind, body, and behavior.

Adding and Subtracting Fractions

Tim and Moby add up the two parts of a fraction, the numerator and the denominator.

Adding and Subtracting Integers

Add some integers here, subtract some integers there…Tim and Moby show you how!

Adjectives

Learn how helpful, descriptive adjectives tell us more about plain old nouns!

Adolescence

Oh those awkward teenage years, when hormones and growth spurts make us self-conscious and also—nearly!—adults.

Adolf Hitler

The fascist dictator and fuhrer of the Nazis, Hitler started World War II and had a hugely tragic effect on the twentieth century.

Adulthood

Growing up means both fun and responsibility; careers, marriage and even wrinkles are part of a pretty good package!

Adverbs

They beautifully describe verbs, adjectives, other adverbs, nouns, and even whole sentences!

Agatha Christie

It’s no mystery why she’s the best-selling novelist of all time.

Aging

Through puberty to adulthood and beyond, aging is a natural part of life. So what happens to your body as you grow older?

Agricultural Revolution

How did domesticating plants and animals lead to a far more stable food supply? The agricultural revolution was a big step forward for us all!

Air Pollution

Cough, cough! Tim and Moby talk smog, soot, and CO2, plus show how to develop Earth awareness.

Airbags

Airbags in cars reduce injuries in accidents, but how do they work? And why do you still need your seatbelt? Learn the truth from Tim and Moby!

Airport Security

Grab your passport, and don’t forget to take off your shoes before getting x-rayed! TIm and Moby walk you through airport security.

Albert Einstein

Tim and Moby introduce you to the Nobel-winning scientist Albert Einstein, the physicist who revolutionized our understanding of space and time.

Alcohol

You probably know alcohol is a drug, and even that it’s a depressant—but learn why intoxication is particularly bad for young people.

Algae

There's life on that thar pond! Tim and Moby discuss algae, photosynthesis, and chlorophyll, plus algae's environmental impact.

Aliens

Unless you’re watching sci-fi, it’s awfully hard to find an E.T. Tim and Moby learn why searching for extraterrestrial intelligence is so difficult.

Allergies

Hives, sneezing, runny nose? Tim and Moby are itching to teach you about allergies!

Alzheimer's Disease

Dementia can be more than being forgetful; it’s a progressive illness.

Amelia Earhart

Take off with Amelia Earhart, the most famous aviatrix of all time, whose last flight remains a mystery.

American Indians

The original Americans were Native Americans! Whether Navajo, Cherokee, or Mohawk, their rich culture was cruelly overwhelmed by European settlers.

American Revolution

Our founding fathers penned a declaration that changed human rights, then Colonial underdogs took on the biggest empire in the world: England!

Amphibians

Learn the life-cycle of amphibians, those super-adaptable creatures that include frogs, toads, salamanders, and newts. Ribbit!

Analog and Digital Recording

Tim and Moby talk about the technology that records sound: Cds, mp3s, even cassette tapes!

Andrew Jackson

“Old Hickory” increased presidential powers and was the first self-made man to become president, but his Indian Removal Act and belief in slavery make him a complicated figure.

Angles

Learn about the difference between acute, obtuse, and right angles.

Anne Frank

Why is Anne’s diary about a Jewish girl during WWII such an important book? Find out!

Anthrax

Learn what causes anthrax, who can get it, and what can be done about it.

Antibiotic Resistance

Don't be scared of antibiotic-resistant "superbugs"--be informed!

Antonyms, Synonyms, and Homonyms

What’ll you have on your bagel—lox or locks? Tim and Moby will teach you about grammar, pronunciation, and how words relate!

Ants

Are ants pests, or fascinating escoskeletal insects with a complex social network of drones and workers? Moby knows the answer!

Apartheid

Learn about Nelson Mandela and the history of South Africa's discriminatory laws.

Apollo Project

Houston, we have a movie! Find out about space exploration and the lunar landing as Tim and Moby introduce you to NASA’s famous Apollo Project.

Appendix

Would you let Moby operate on a vestigal part of your intestine? Neither would Tim!

Arachnids

Creepy crawly arachnids are super cool! Spiders, tics and scorpions all belong to this group of arthropods--but who spins silk and who shoots venom?

Architecture

You want Architecture? We’ve got Modern, Renaissance, Gothic, Tudor--so how do you like your buildings?

Area of Polygons

Tim and Moby show you how to find the area of polygons like triangles, trapezoids, and parallelograms.

Armed Forces

Army, Navy, Air Force, Marines and. . what? Tim and Moby introduce you to all five branches of the American Armed Forces, and march you through their jobs and histories.

Articles of Confederation

Learn how the United States was governed before the Constitution was written!

Asexual Reproduction

Some creatures clone themselves to reproduce their genes. Mitosis and budding are cool, but just get a load of limb regeneration!

Assembly Line

Ever hear of the Industrial Revolution? If you have, then you MUST know about the assembly line! Put this movie on your conveyer belt and learn more.

Associative Property

Tim and Moby introduce you to the associative property of addition and multiplication, a form of grouping which simplifies algebra problems.

Asteroids

A shooting star may have wiped out the dinosaurs!? Find out more about the space rocks known as asteroids.

Asthma

Asthma can be caused by pollution, allergies, dust, or heredity. Tim and Moby help you learn how to breathe easy!

Athens

Democracy, drama, and the Olympics! Learn about the ancient city-state of Athens, Greece, where much of the culture we take for granted today was invented!

Atomic Model

Tim and Moby discuss how electrons and neutrons were discovered, what atoms are made of, and how long it took to create an atomic model!

Atoms

Atoms are everything! Tim and Moby introduce you to atoms, which contain all the elements in the universe, and to the concepts of atomic number and atomic mass.

Autism

We often hear about savants and Asberger’s nowadays. Tim and Moby give you the real facts about autism.

Autumn Leaves

Autumn leaves are more than than just pretty foliage: Learn why deciduous leaves change color in this animated movie!

Avalanches

Tim and Moby discuss the terrible power of avalanches, snowy natural disasters caused by opposing forces of stress and strength.

Avian Flu

Sounds like a scary movie, with mutating viruses! Tim and Moby tell how Avian Flu can be controlled with culling, vaccines, and embargos.

Aztec Civilization

Tim and Moby lead you into the Valley of Mexico for a look at the powerful Mesoamerican civilization, and how the conquistuadors engineered their fall.

Babies

From fertilization through pregnancy to birth, it takes a lot to make a person! And Moby’s got a toasty little bundle of joy. . .

Back to School

When summer’s over and it's time to hit the books, Tim and Moby’s helpful tips can make the transition a little easier.

Bacteria

Microscopic bacterium exist everywhere--even on our bodies! Learn how these microorganisms can be good or harmful.

Balance

There's no spin on this tale of why you may sometimes feel dizzy or nauseous—and what your ears have to do with it all!

Banking

Do you have interest in more money? Tim and Moby take you through banking basics, like deposits and withdrawals, and the difference between cash and capital.

Barack Obama

Yes, we can talk about Obama, the Hawaii-born 44th President and former Chicago community leader who became the first African-American elected to the office.

Baseball

Tim and Moby take you out to the old ball game: Learn about the game where everyone’s running around that big diamond, trying to get home!

Basic Probability

You may think that chance is just a roll of the dice, but what are the odds you'll like the outcome? Learn how to calculate and express basic probability.

Basketball

There’s so much more to basketball than putting a ball through a hoop! Tim and Moby talk three-pointers and rebounds.

Bass Reeves

The almost-lost legend of one of America’s greatest lawmen

Bats

Cave-dwelling, fruit-eating mammals with a bad vampire rep! Is it true? Learn about the echolations of our bat-pals.

Batteries

An energizing nine-volt convo about the relevant parts of a battery, from anode to electrolyte.

Behavior

It can be learned, instinctive, reflexive or conditioned, but when is it good or bad? Tim and Moby talk behavior.

Benjamin Franklin

The famed inventor who was also a Founding Father, a scientist, and a diplomat. It takes a lot to get on the $100 bill--ask Tim and Moby!

Bicycle Safety

Tim and Moby talk about the importance of reflectors, how to properly wear your helmet, and what those weird hand signals mean.

Big Bang

The universe wasn't always here. Learn the scientific explanation of how it came to be in this animated movie!

Bill Clinton

See how a saxaphone-playing poor boy from Arkansas defied the odds to become the 42nd President of the United States!

Bill of Rights

Ten amendments to the constitution you’ll hear a lot of shouting about! Learn about each of the 10 amendments of the Bill of Rights, and discover who interprets them nowadays.

Binary

Learn how computers count, and how to read or create numbers using the binary system. Zero in on this one!

Biofuels

Learn about cleaner-burning, entirely renewable fuels!

Biography

Discover what makes a biography, and learn the source of memoirs--the writer’s life!

Birds

Ah, to have the wings of a dove! Learn all about birds and how they fly in this Tim and Moby movie.

Black Death

You’re right, it’s not something you want for your birthday. This pandemic outbreak caused by a plague of rats changed society in the Middle Ages.

Black Holes

Think your school day is long? Try living in a black hole, dense places in space where gravity prevents even light from escaping!

Blogs

I audioblog, you videoblog, we all kinds of blog for weblogs! But how to practice good digital citizenship?

Blood

Plasma, marrow, wounds and clots—Yikes! Tim and Moby in a bloody movie!

Blood Glucose Meter

A simple device to help diabetic people know what’s up (or down) with their insulin and glucose levels.

Blood Pressure

Wondered about those numbers when the doctor takes your blood pressure? Here’s what diastolic and systolic mean, and why no one wants hypertension.

Blood Types

Positive or negative, A, B, or O. What’s yours? And what's a universal donor?

Blues

Delta, Memphis, or Chicago, they’re all part of a uniquely American form of music—the blues!

Body Chemistry

Tim and Moby talk about your body’s main sources of fuel, proteins and carbohydrates, and how lipids can help or hurt us.

Body Scans

Find out how X-rays and imaging help doctors diagnose disease. Plus, what’s a PET scan and does it involve your cat?

Body Weight

Body weight isn’t just a matter of being obese or not! Tim and Moby give you the skinny on nutrition, fitness, and the three body types.

Boogers

Ah, Boogers! Your nose's front line defense gives you immunity against germs and infection. Pick this one—it’s a winner!

Book Report

Plot, character, theme: Learn the ins and outs of writing a great book report.

Braces

Tim and Moby fill you in on orthodontia including overbites, crossbites, underbites and those too easily losable retainers. Brace yourself!

Brain

Tim and Moby get brainy, because from the hypothalamus to the limbic system, your cerebral system runs the show--and it’s reading this right now!

Branches of Government

Find our how powers are separated between the Legislative, Judicial, and Executive branches of government. It's pretty cool how the system of checks and balances helps limit the power that any one branch can exercise!

Brass Instruments

Trumpets, tubas, trombones and that guy Miles Davis: They’re beautifully full of hot air!

Bridges

Tim and Moby have no reason to be arch about it: Nothing spans rivers, lakes, and canyons like a bridge! Learn the three types of bridges, when they’re used, and what trusses do.

British Empire

How did the British Empire become the largest imperial colonizers in history, and what ended this mercantile domination? Grab a cuppa and watch Tim and Moby embark on a 400 year-old tale.

Broken Bones

Fractures, splints, and x-rays are no fun. But it's pretty cool that something as solid as bone can knit itself back together!

Brown vs. Board of Education of Topeka

“Separate but equal?” Tim and Moby will teach you what this term means as they discuss segregation, civil rights, and the famous trial case, Brown v. Board of Education.

Bruises

Call it a contusion or just a plain old bruise, when capillaries burst you get black-and-blue (or red-and-purple). Tim and Moby explain why.

Budgets

Earn some, spend less, and don’t buy what you can’t afford. Learn about the basics of budgeting or you might have to learn the basics of debt!

Building Basics

Find out how buildings are designed to withstand the effects of gravity, compression, and tension.

Bullying

There are many ways of picking on someone; name-calling, fighting, or simply being a big jerk. Tim and Moby walk you through bullying and how to handle it.

Buoyancy

Throw an anchor into the ocean and it sinks. So why does a boat holding an anchor float? Discover the mysteries of buoyancy!

Burns

Learn about our delicate skin and blisters, scalding, and fires. And hang on to that potholder!

Business Letter

Tim and Moby send salutations and talk about how to write and structure a business correspondence.

CD

How can that flat plastic circle hold all that information? Learn about CDs, both music and data in this here animated movie! There's some stuff about DVDs, too, if you're interested!

CPR

The ABCs of CPR are Air, Breathing and Circulation—but how does that work, exactly?

Caffeine

The most popular drug in the world, it’s in coffee, soda, and tea! So sit still and learn about the habit-forming stimulant caffeine. Seriously, sit still!

Calculus

Don’t be scared of calculus--it’s only curves and slopes and lines. Tim and Moby throw in a differential or two, just to keep it fun!

Cameras

Everybody’s heard of pixels, images, and lenses—but not everyone knows how photography really works. Tim and Moby do, and you will too.

Camouflage

Learn about camouflage, the protective coloring that allows animals to survive by blending into the background.

Cancer

A frightening disease, but medical science is making strides: Tim and Moby teach you about MRIs, tumors, radiation and carcinogens. And kids—don’t smoke!

Capitalization

Big letters, small letters: Knowing when to use them makes for proper grammar!

Carbohydrates

Carbs get a bad rap! Just avoid sugary foods and eat high fiber carbohydrates from fruit and whole grains. Tim and Moby tell you why.

Carbon Cycle

The carbon cycle's not a cool new bike: It's how carbon moves around through different forms in the atmosphere. Find out why it's so important!

Carbon Dating

How old is that fossil in the window? Learn how scientists use a radioactive isotope called carbon-14 to find out the answer!

Carnivorous Plants

Dig into the weird science of carnivorous plants and learn where meat-eating marvels like the Venus Flytrap live. Bugs--they're what's for dinner!

Cars

If you’re ever going to drive one, you should know how it works! Tim and Moby will teach you about a car’s essential parts, including the transmission, the suspension, the brake system, and the catalytic converter.

Cats

Hello, kitty! Cats and the Internet go together like whisker and purr. Watch this movie to learn all about our feline friends.

Causes of the American Revolution

What is an intolerable act of tyranny? Learn about taxation without representation and boycotts in the Colonial days, and what “quartering” means. Tim and Moby say they want a revolution!

Cell Phone

Tim and Moby give you the buzz on cell phones. What have cells got to do with them? Also learn what cell phones have in common with radios, and what a duplex system is!

Cell Specialization

Cell Specialization sounds pretty complicated. But once you learn the difference between eukaryotic and prokaryotic, you’ll practically be a specialist yourself!

Cell Structures

Every cell is like a little factory, churning out life! Tim and Moby talk about the responsibilities of the nucleus, and good ol' lysosomes and ribosomes.

Cells

Did you know your body has building blocks? They’re your cells! Learn about organelles and membranes, plus how big cells can get—over one meter long?!

Cellular Respiration

Cells are aerobic, too! They inhale and exhale and generate energy from glucose. Learn how mitochondria play a big role in how our bodies stay energized.

Cerebral Palsy

Tim and Moby talk about Cerebral Palsy, a muscular disease caused by lesions in the brain.

Charles Darwin

Meet the originator of the theory of evolution, a world-famous naturalist who introduced the ideas of mimicry, natural selection, and the survival of the fittest.

Charles Dickens

Don’t say “Bah, Humbug”! Dickens survived childhood poverty to become one of the greatest novelists ever.

Che Guevara

From privileged Argentinian to Cuban revolutionary to having his face on all those t-shirts! Che Guevara was a complicated figure in Latin American communist rebellion.

Chemical Bonds

Tim and Moby give a chemistry lesson in how atoms come together to form molecules. It's a nucleic miracle!

Chemical Equations

What does a chemical reaction look like on paper? A chemical equation! Tim and Moby introduce you to the formulas and symbols that make up the chemical language.

Chickenpox

A chickenpox on both your houses! Learn about the classic childhood itchy disease, and why you’re a lot less likely to get it than your parents were.

Chocolate

Nothing bittersweet about this movie on chocolate! Follow how cacao beans are harvested, sweetened, and processed--it’s complicated, going from bean to bar--and totally worth it.

Christopher Columbus

Nina, Pinta, and Santa Maria! This great sailor and navigator crossed the ocean blue, and into the New World. But the relationship between the explorer and the natives is troubling.

Circles

We all know what a circle is, but what’s a radius, diameter or circumference? Tim and Moby will also introduce you to circle’s friend Pi. I wish I had a friend named Pie...

Circulatory System

Your heart’s an engine that’s driving blood out to all of your veins and arteries right now. But what gets blood back to the heart?

Citing Sources

How many sources can you cite? Plenty, once Tim and Moby teach you how to write a good bibliography!

Citizenship

A definition of the meaning, freedoms, and responsibilities of being an American citizen. Tim and Moby vote for you to watch this movie!

Civil Rights

Thank you, sister Rosa! Ms. Parks, that is! This movie is all about the civil rights movement, from segregation trials to freedom marches. Plus a few words from Dr. Martin Luther King!

Civil War

A movie about the War between the Confederates and the Union. Abraham Lincoln presided over the bloodiest war in American history, but it ultimately emancipated the slaves.

Civil War Causes

Does a state have the right to secede from the Union? Lincoln didn’t think so; but the South was willing to fight for it. Learn more about slavery, confederates, and abolitionists!

Classification

How do scientists order the millions of organisms and species on Earth? Class, family, species...We're not sure about Moby.

Clauses

Independent or dependent, nouns or adjectives, Tim and Moby know how clauses make sentences work.

Clefs and Time Signatures

Take a beat, Daddy-O, and note down some of the basics of musical measures!

Cleopatra

Meet the powerful last Queen of Egypt, whose downfall led directly to the establishment of the Roman Empire.

Climate Change

Human activity is kicking global warming into overdrive! Find out how you can help slow down climate change and get our planet off the hot seat.

Climate Types

Tim and Moby tell you all about the earth’s different climate systems, from weather in the frozen poles to the steaming-hot tropics!

Cloning

Clones are creatures that share the exact same DNA! Find out why scientists are working to perfect the technology, and about a sheep named Dolly.

Cloud Computing

Learn how cloud networks keep your data handy, wherever you are!

Clouds

We all know when it’s overcast, but are those nimbus clouds or cumulus? Tim and Moby explain different cloud types and how clouds form.

Cnidarians

Don't get stung! Dive into the ocean and learn about these wiggly invertebrates of the sea, including jellyfish, corals, and hydras.

Cold War

The arms race and the space race take center stage as two nuclear superpowers vie for supremacy. Brrr!

Colons

Tim and Moby on how these two little dots are so useful: You'll see them as salutations, as independent clauses, and as indicators of a related sentence to come. You'll even see them on your digital clock!

Color

Are we on the same wavelength about color? Tim and Moby explain why the grass is green and the sky is blue.

Columbian Exchange

The Old World and the New World swap people, spices, gold, and diseases in the Columbian Exchange!

Comets

Tim and Moby tell you the cool story of comets, icy meteors that orbit the sky, and introduce you to Halley’s and Hyakutake.

Communism

A theory based on the idea of the equal distribution of wealth. Sounds ideal, right? Learn why it can work, but also how many communist countries devolve into dictatorships.

Commutative Property

The Commutative Property works for addition and multiplication. Find out all about it in this BrainPOP movie.

Comparing Prices

A little practical math can help us save money on things we need to buy, leaving a budget for the things we want to buy. Tim and Moby talk you through comparing prices.

Compass

Tim and Moby will teach you all you wanted to know about compasses and how they work--plus how to make one! You’ll discover what Earth’s magnetic field has to do with compasses, and how it interacts with a compass needle. So, uhm...where are we?

Compound Events

Tim and Moby play a board game to show the difference between mutually exclusive and inclusive events, and how they affect the likelihood of getting the desired outcome.

Compounds and Mixtures

Learn the difference between a compound and a mixture. Which is more difficult to undo, and where does sea water and salad dressing come into it?

Computer History

Have you ever seen a punch card? Get the background on computers, how they were used in the 1890 census, and in the 20th century went from weighing 10,000 pounds to being the size of your fingernails.

Computer Mouse

Aww, so cute--and computer mice don’t eat your cereal! Tim and Moby talk about the two most popular mouse types, the mechanical mouse and the optical mouse.

Computer Programming

Computer programming is the art of telling technology what to do!

Computer Viruses

Wait--don’t click that link! Uh-oh... Tim and Moby will show you exactly how computer viruses can get inside your system and wreak havoc on your hard drive.

Computers

It’s all right beneath your fingertips right now--computers! Learn how they communicate, what a central processing unit (CPU) is, and how a hard drive operates. Also find out all about other computer parts like modems, circuit boards, and sound and video cards.

Concept Mapping

Learn how to use concept maps to navigate your knowledge!

Conditioning

Salivating for a movie about conditioning? Tim and Moby will tell you about the process of behavioral conditioning, reflex and stimuli, and Pavlov’s experiments. Now, fetch!

Conducting an Interview

Questions and answers are just the start—learn what else it takes to conduct a great interview!

Conflict Resolution

Learn how to resolve your differences with negotiation and compromise, and why it's a bad thing to always get your way.

Conjunctions

Either conjunctions are important for coordinating phrases, or they’re not! (Hint: They are.)

Conquistadors

How--and why-- were a small number of Spanish adventurers able to wipe the majestic Inca, Maya, and Aztec civilizations off the map?

Conservation of Mass

Scotty won’t be beaming you up anytime soon. Why? Because the conservation of mass makes it impossible! Tim and Moby explain thermodynamics.

Conserving Energy

Tim and Moby show you how insulation, recycling, and using renewable energy sources can preserve the planet and be easier than you think!

Constellations

Whether the Big Dipper, or Orion’s Belt, or Scorpio, these star patterns have always made humans wonder about the nature of the universe. Tim and Moby lie low and look up.

Constitutional Convention

Join Tim and Moby at the Constitutional Convention to relive the debates that shaped a nation!

Context Clues

Learn to figure out unfamiliar words!

Continents of the World

How many continents are there, anyway? And which one has no permanent population? Which contains only one country? Tim and Moby get all continental on you.

Contractions

What’s a contraction and how’s one made? Tim and Moby help you use an apostrophe to combine words.

Converting Fractions to Decimals

"One-half" is the same as "point five," but how do you get from one to the other? Learn how to convert fractions into decimals, and back again! Hey Presto!

Coordinate Plane

Learn about an imaginary boundless surface with length and width, but no depth. Coordinate planes help you chart data and keep on track!

Copyright

Don’t get too creative with public works, or you’ll get sued for plagiarism! Find out what a copyright is and how it might apply to your everyday life.

Coral

Multi-colored underwater beauty in barrier reefs--but don’t cut yourself! Tim and Moby talk about coral, a radial resident of the world’s seas and oceans.

Country Music

Do-si-do through the history of country music, from Patsy Kline to Garth Brooks.

Court System

We, the jury, find the defendent very appealing! Learn all about the American legal system from our civil friends, Tim and Moby.

Credit Cards

The bank doesn’t loan you that money for free, you know! You’ll find interest in Tim and Moby’s talk about APR’s, purchasing power, and debt.

Critical Reasoning

Not all arguments are created equal--learn how to spot the good ones and reject the bad ones!

Crystals

Crystals aren’t only rubies, emeralds, and diamonds! Tim and Moby introduce you to the mineral world, including some you probably keep in your kitchen cabinet.

Cubism

Get a little perspective on the art movement Cubism from Tim, Moby, and Picasso!

Current Electricity

Tim and Moby trace electricity's path from the coils and turbines of the power plant into your home!

Customary Units

Ounces, pounds, gallons, and miles. Oh boy, you'll learn tons about them all in this BrainPOP practical math movie!

Cyberbullying

Don't be a cyberbully! Learn about good digital citizenship, and how to deal with computer harassment.

Cystic Fibrosis

Take a deep breath and learn about the causes, symptoms, and treatments of cystic fibrosis.

César Chávez

Don’t cross that picket line! Learn about the life and work of the Mexican-American labor leader César Chávez, and the influence of his non-violent protests, strikes, and boycotts.

DNA

DNA is your body’s blueprint, and no one’s got chromosomes quite like you--unless you have a clone! Ooh, do you?

Dams

Moby’s not sure about the idea of a fish ladder, but otherwise he’s crazy about dams! Learn generate electricity and control flooding, and back in ancient Egypt they even helped irrigate farmland.

Dance

Astaire and Rogers have nothing on Tim and Moby: Learn how movement can become art.

Dark Matter

What’s all that dark, spooky stuff in outer space? All scientists know is that it’s massive, gravitational, and dense! Tim and Moby shed some light on dark matter.

Data Storage Devices

CD, DVD, or flash drive? Tim and Moby decode the difference between bits and bytes, and tell you a little about binary numbers and measurement. So stick out your thumb drive and get a flash of this movie!

Daylight Saving Time

Look at your clock and remember: Spring forward, fall back, and never be late for school! Learn which founding father first proposed DST, and why our summer nights are so light.

Death

No point in being scared because (as any mummy will tell you), it’s part of life! And who knows what the afterlife holds?

Debate

For effective arguments, the power of rhetoric is not open to debate!

Debt

When people, businesses, and governments borrow money

Decimals

The decimal system represents a hundredth or even more than a thousandth of a whole--because sometimes things are just way teenier than one!

Declaration of Independence

“We hold these truths to be self-evident. . .” Jefferson was the main author of this revolutionary document, but who else helped? And how dangerous was it to sign?

Democracy

Elections, Voting, and Congress: They’re all about representing us! Learn about democracy’s history, and the difference between direct democracy and representative democracy.

Deserts

Tim and Moby teach you about a complex biome, the land of hot sands and even hotter sun, of snow dunes and permafrost! How does anyone, apart from a cactus, adapt to desert life?

Diabetes

Too much blood sugar isn’t good! Learn about diet, weight, insulin, and diabetes.

Diagramming Sentences

Learn how to diagram all the parts of a sentence, from adjective to verb! But what on earth is a predicate?

Dialogue

How to recognize and write dialogue in novels, screenplays, and scripts.

Dictionary and Thesaurus

Tim and Moby teach you to look up and learn more about words and their meanings!

Diffusion

Do you smell a funny odor? Don’t let it disturb your equilibrium, instead thank diffusion!

Digestive System

Tummy rumbling? Find out how digestion happens, and what nutrients, saliva, and enzymes do for you!

Digital Animation

From computer-generated storyboards right through stills, images, and story. Tim and Moby have the inside scoop on animated films.

Digital Etiquette

Online etiquette is about more than asking that troll to please pass the mousepad! Learn the do’s and don’ts of netiquette, and how to create respectful emails, IMs, and blogs.

Dinosaurs

Tim and Moby take you on a dino-mite adventure through the world of the extinct

Distance, Rate, and Time

How long will it take you to get there, at 58 mph, with ten gallons in your tank, the wind in your hair, and a hundred kilometers to go? Tim and Moby figure it out.

Distributive Property

The distributive property involves addition and multiplication. So where do all the parentheses come in? Tim and Moby know.

Division

A 30s gangster movie about how to divide and conquer--and deal with the remainders! Tim and Moby walk you through a little practical math, quotients and all.

Diwali

They’re not just rows of lamps. . . they light the way to the biggest celebration on the Hindu calendar! Learn about the holiday of Diwali.

Dogs

Purebred or adorable mutt, terrier or hound, Tim and Moby tell you everything you need to know about our pals the canines.

Dolly the Sheep

It's not science fiction anymore: Scientists in Scotland cloned a sheep. Learn about Dolly, the world's first clone made from adult DNA.

Dolphins

Friendly flippered mammals of the sea, whose echolocations help them get around safely and avoid becoming prey!

Drama

“Exit, pursued by a bear!” Learn about drama through the ages—comedy to tragedy, and ancient Greece through Shakespeare.

Drawing

From doodling around to shading, stipling, and etching—there's nothing sketchy about this movie on drawing!

Dreams

Like movies of your subconscious, mixed in with a little wish-fulfillment and some weird neural noise!

Droughts

Learn how local weather and climate conditions can lead to long-term water shortages.

Duchenne Muscular Dystrophy

Tim and Moby discuss the symptoms, effects, and treatments of this progressive muscular condition.

Dyslexia

Millions have lived with the reading disorder dyslexia, including some of the greatest artists and thinkers in the world!

Earth

From the oceans to the valleys, to the landforms, that we love! Tim and Moby talk about our blue, blue planet and its delicate atmosphere.

Earth's Atmosphere

It's the air you breathe, and so much more! In this movie, learn about the many layers of Earth's atmosphere!

Earth's Structure

We all know what happens on the surface of the earth, but what happens beneath the surface? Learn about your planet's internal structure!

Earthquakes

Tim and Moby introduce you to the mechanics of earthquakes, natural disasters measured by seismograms and caused by tectonic shifts.

Eating Disorders

The causes and treatment of this devastating psychological condition which leads to starvation, binging, and purging.

Ebola

A deadly virus that's difficult to spread

Eclipse

In ancient times, an eclipse was often a harbinger of impending doom! Now we know better. Check this out to learn about eclipses, both solar and lunar!

Ecosystems

Tim and Moby talk ecosystems! Learn what communities, populations, and habitats really are, and about the importance of preserving our biomes.

Edgar Allan Poe

Calm your tell-tale heart: This movie about macabre author Edgar Allan Poe isn’t nearly as frightening as his tales!

Egyptian Pharaohs

Why did Cleopatra and King Tut hold those crooked canes? Discover what it meant to be a pharaoh, and why pyramids meant so much to these supreme monarchs.

Elapsed Time

Analog or digital, time flies! Learn the importance of managing time in everyday planning and in working time-related equations.

Eleanor Roosevelt

This First Lady was just as influential as her husband (Franklin) and her uncle (Theodore)! Learn how Eleanor Roosevelt went from Depression-era icon to the United Nations.

Electric Circuits

Tim and Moby give you a working knowledge of electrical circuits, including the power source, terminals, and volts. It’s all pretty shocking!

Electricity

This movie generates more than a volt of knowledge about electricity! It’s not just flipping a switch: Did you know magnets play an important role?

Electromagnetic Induction

Learn about a scientific discovery which changed our lives: How magnetic fields can create an electric current in a wire. It’s how you have electricity right now!

Electromagnetic Spectrum

Somewhere, over the...electromagnetic spectrum? Learn about radars, light wavelengths, and radiation. You won't get this story over the radio!

Electromagnets

Electricity and magnetism...two sides of the same coin.

Elephants

Meet the elephant, an endangered animal found throughout Africa and Asia that’s big on brainpower, big on appetite, and just plain BIG!

Elvis Presley

Learn all about Elvis Presley, the singer from Memphis, Tennessee who became the King of Rock n' Roll.

Email and IM

You can get into the tech stuff and let Tim and Moby tell you the definitions of SMTP and POP and what computers’ addresses look like, or just have fun emailing and chatting with your friends--but everyone should learn these important internet safety tips.

Emily Dickinson

Discover one of the most unique and influential voices in American verse

Endocrine System

Hello, Hormones! Learn about the body system that governs growth, energy, and all sorts of cellular activity.

Energy Pyramid

Tim explains that predator eating prey is the food chain’s way of distributing the sun's energy throughout entire ecosystems! What's a poor herbivore to do?

Energy Sources

Tim and Moby talk about diverse energy sources like coal, gas, windmills, solar power, uranium and corn. Wait--Corn? With or without butter?

Equations with Variables

Tim and Moby talk about variables, which are the x, y, and z of simplifying and solving algebraic equations.

Erosion

Learn about how water, wind, and time creates erosion and re-shapes the land. Tim and Moby have a hint for you: Drip, drip, drip...

Estimating

Sometimes accuracy’s over-rated! Whether you estimate or guesstimate, all you need is a little practical math.

Ethics

Learn about what ethics and ethical dilemmas are, and how to make good decisions in tough situations.

Etymology

Tim and Moby talk you through the study of words—their origins, meanings, and how wars change language!

Everglades

Visit one of the most unique environments on Earth, with ecosystems featuring wetlands and crocodiles, manatees and mangroves! But how is water pollution affecting the area?

Exoplanets

Is there life out there? Maybe! That's why astronomers look for planets around other stars, and find the extraterrestrial world so fascinating. So do Tim and Moby!

Exponents

They sound complicated, but exponents are really just a simple way to show repeated multiplication. Tim and Moby give you the power.

Extinction

You don’t have to be a dodo to be confused by extinction! Tim and Moby give you the lowdown on extinct and endangered species, and the difference between the two.

Eyes

Just look at how pupils, lenses, and irises enable us to see the beauty in the world--including that piece of chocolate cake!

Faces

Eyes, noses, mouths, skin--we’ve all got ‘em! But have you ever thought about how much our faces say about who we are?

Fact and Opinion

Figure out the difference between what’s true, what’s not true, and when bias presents opinion as truth. Tim asks: Can you prove it? Well, can you?

Factoring

What do factors and multiplication have to do with breaking prime numbers into smaller pieces? Find out in this animated movie!

Fall of the Roman Empire

The Roman Empire went from the greatest heights of art and culture that the world had ever seen, to utter collapse. Learn the byzantine story of the fall of the Roman Empire.

Fats

Do you know which fats are healthy, and which aren’t? Put down those chips, grab some (unbuttered) popcorn and watch this movie!

Fax Machine

Before e-mail there was the fax! And frankly, fax machines still come in pretty handy! Let Tim and Moby show you how they work!

Feminism

Is it radical to think we all deserve equal rights? Learn about gender discrimination through the years, the meaning of suffrage, and some famous feminist activists.

Fetal Development

All the steps of a baby’s development, from fertilization to zygote to embryo. And it all begins with one single cell.

Feudalism

If you like knights in shining armor, kings, peasants and--er--plagues, pay fealty to this movie! Tim and Moby discuss life during medieval times.

Fibonacci Sequence

In movies, nature, code, and a math equation near you! Tim and Moby walk you through the series of numbers that make up the mysterious Fibonacci Sequence.

Filmmaking

Whether a movie’s a documentary, a short, or by Spielberg, they all need three things: Lights! Camera! Action!

Fire

Fire, fire, burning bright, see what sets a fuel alight! Tim and Moby ignite the mystery of combustion, the chemical reaction that makes flame possible.

Fireworks

O, Say can you See...What's cooler than a good firework? A sky full of great fireworks! Check out this movie for an explanation of how fireworks work, what chemicals create certain colors, and what gives a sparkler that fizz!

First Aid

We’re not applying pressure, but why not learn what a first aid kit contains and how to deal with cuts, scrapes, and more serious injuries?

Fish

Cold-blooded, scaly, and tasty vertebrates! Tim and Moby fill you to the gills with information about our finned friends, the fish!

Fitness

Breaking a sweat can make you look good, control your weight, and improve your health.

Five-Paragraph Essay

Learn about intros, conclusions, and what should go in each paragraph of a short essay.

Flight

Do wings and rudders, lift and drag make you nervous? It shouldn't. Tim and Moby take off on an explanation of the mechanics of flight!

Floods

Surging forces of nature brought to us by storms, tides, and mankind! Tim and Moby explain one of the most common natural disasters, floods.

Flu and Flu Vaccine

How can a shot keep you healthy? Learn about the flu vaccine, and who should get it.

Food Chains

Predator or prey, consumer or producer? How about all of the above? Tim and Moby talk about how the food chain connects every species.

Food Safety

Refrigeration, pasteurization and expiration dates: Don't be chicken, learn how to keep your food safe!

Football

Fumbling by the goalpost? Kick-off by learning the basics of American football!

Force

Tim and Moby use bumper cars to illustrate acceleration, deceleration, and the effects of friction. We won't need to force you to get into the momentum of this movie!

Forms of Energy

In this electric movie, Tim and Moby talk energy and introduce you to its different forms, including solar, nuclear, and potential energies.

Fossil Fuels

What makes cars go? Fossil fuels! What lights up gas grills and stoves? Fossil fuels! What's non-renewable and really bad for the environment? You know...

Fossils

BrainPOP’s dynamic duo will teach you about carbon dating and body fossils--which you might find in a tar pit--and trace fossils, which could be as simple as a set of footprints.

Fractions

The numerators and denominators of fractions represent pieces of a whole! Tim and Moby show you how visualizing everyday objects makes this math lesson easy.

Frankenstein

Meet the gothic monster of all monsters—and the woman who gave Frankenstein life!

Franklin D. Roosevelt

Our longest-serving president won four consecutive presidential terms, created the New Deal, and guided the nation through the Great Depression and World War II!

Frederick Douglass

Meet Frederick Douglass, who went from being a slave to one of the leading American abolitionists of the 19th Century, and a crucial figure in Black History!

French Revolution

Off with their heads? Yikes! Learn how the French monarchy alienated the people, and when the promise of equality, and brotherhood devolved into a violent battle between rival factions.

French and Indian War

Britain and France once fought over who’d dominate North America: Trade with Native Americans sparked this conflict, and a fellow called George Washington got involved!

Frida Kahlo

Like to draw self-portraits? Learn about the influential Mexican painter Frida Kahlo.

Fuel Cells

Are you ready for the future of energy? While they're still being perfected, fuel cells are one of the most promising energy technologies to come around in a long while--talk about cool tech!

Fungi

Mold, yeast, and mushrooms, oh my! Learn about the diverse world of fungi, from truffles to penicillin.

Galaxies

What do stars call home? BrainPOP’s starry pair talk about galaxies, constellations made of stars, gas, and dust and which make us ponder the nature of the universe.

Galileo Galilei

The amazing career of Galileo Galilei, the Italian mathematician, scientist and philosopher who got in big trouble for being non-heliocentric. Tim and Moby tell you how!

Game Theory

Tim and Moby negotiate their way through a movie on Game Theory, a field of economics that formulates mathematical strategies for complex situations.

Gas and Oil

Tim and Moby talk about our troublesome relationship with the car, and how refined fuels and carbon dioxide are contributing to the greenhouse effect.

Gears

This movie on gears really has some TEETH! And that makes sense, because gears wouldn’t work if they didn’t have those little ridges that keep them in place, helping the big gears line up with little ones, and increase a machine’s power or speed.

Genetic Mutations

Some are good, some are bad--but genetic mutations are powerful changes deep within a body’s chromosomal blueprint.

Genetics

Hair, teeth, height--even those pesky allergies! Learn how all of these are part of your genetic inheritance.

Geography Themes

Tim and Moby get that globe spinning and talk about what the geography of a country can tell you about its people, their culture, and their history!

Geologic Time

How do you measure billions of years? Tim and Moby look into eons, epochs, and periods. When geologists talk about a long time, they mean a lo-ong time.

Geometry

Tim and Moby go to any lengths to get you in line with your compass and protractor!

George Washington

The founder of our country, the first commander-in-chief, and a darn good general--George Washington wasn’t perfect, but he’s a truly revolutionary figure.

George Washington Carver

Learn how George Washington Carver became a renowned scientist during the Jim Crow era

Georgia O'Keeffe

A look at the life and career of the modern artist who brought you flowers, skulls, and beautiful Southwestern skies!

Getting Help

Sometimes all you need to do is ask. Tim and Moby tutor you in how to know--and where to go--when you need help.

Giant Squid

Giant squid off the port bow--prepare the tartar sauce! Tim and Moby talk about the wriggly underwater world of squid, octopi, and mollusks.

Gills

How do cold-blooded creatures breathe underwater? Gills! But it’s not actually water that fish are breathing. Tim and Moby teach you more.

Glaciers

See how drastically glaciers form and erode the land, and learn about the two kinds of glaciers, in this BrainPOP movie. Brrr--it's feeling chilly in here!

Global Positioning System

GPS receivers are great at helping you get un-lost, but just how the heck do they work? Tim and Moby explain satellites allow you to pinpoint your exact latitude, longitude, and altitude. So why do I keep getting lost in the first place?

Gold Rush

There’s nuggets of gold in them thar hills! Or rather, there were. Tim and Moby go panning through the history of the California Gold Rush, and the 49’ers who lived it.

Graphic Design

Where do those images on billboards, posters, and tv come from? Let Tim and Moby teach you about graphic design.

Graphing Linear Equations

Here's a plot for you: Tim and Moby teach you how to understand graphs, find trends, and even predict the future by graphing linear equations!

Graphing and Solving Inequalities

Tim and Moby risk life and limb to show you how to graph and solve inequalities.

Graphs

Learn about bar, pie, and line graphs with this adventure as Tim and Moby coordinate their x-axes, and plot a course to the Caribbean!

Gravity

It controls the tides, helps planets orbit, and keeps us all on earth! Tim and Moby give gravity some love.

Great Depression

The 1929 stock market crash began the greatest economic slump of the 20th century, leading to strikes and rife unemployment. Then add a big old dust bowl to the mix. . .

Great Depression Causes

Discover why the prosperity of the Roaring Twenties couldn’t last, and how people’s spending and saving habits made a financial crisis inevitable. Tim and Moby wonder: Lesson learned?

Great Wall of China

Who built the Great Wall of China, and why? Tim and Moby stand on the watchtower and search for Huns and Mongols.

Greek Gods

Zeus and Hera presided over a powerful strange family. Learn about the mysterious histories and behaviors of the Ancient Greek gods!

Greenhouse Effect

Learn what the greenhouse effect is, and how gases in Earth’s atmosphere contribute to deforestation and melting icecaps. Someone, open a window!

Groundwater

What do wells, springs, and wetlands have in common? Tim and Moby discover Groundwater in this geyser of a BrainPOP movie.

Growth

Hormones plus maturation equals growth! Learn all about how you grew from a tiny baby to the hugely fabulous person you are today.

Guns

Arm yourself with knowledge about the uses and dangers of firearms. Learn why guns can trigger some fierce debates, and what the Second Amendment has to do with it all.

Hackers

Learn all about the history of hackers: the good, the bad, and the gray area in between.

Hair

You’ve heard of blonde, brunette, and redhead. But what's vellum? And follicles? Get the 411 on those lustrous locks of yours!

Halloween

Ghosts, witches and goblins all know Halloween’s #1 rule: Don’t eat your candy all at once. Tim and Moby talk about the spooky holiday’s surprising history!

Harlem Renaissance

From Armstrong to Ellington, and Hughes to Hurston, a time of flowering in African-American culture and arts!

Headaches

From tension headaches to migraines, discover where headache pain actually originates. (It may not be from where you thought!)

Hearing

What? Did you know sound travels, and that the eardrum is a lot like a regular drum? Listen up and learn all about our sense of sound.

Heart

Be still, my fluttering heart! Or rather--don’t. A movie on how this major muscle is always beating, helping blood to circulate through your whole body.

Heat

You know about Farenheit and Celsius--but who’s Kelvin? Tim and Moby give you a high degree of info on how things get hot.

Helen Keller

Learn about the the admirable activist who overcame deafness and blindness to teach the world that people with disabilities can do anything!

Henry Hudson

The most famous explorer who never found what he was looking for

Heredity

Ever wonder why you look like your parents? Find out how dominant and recessive genetic traits work, and what peas have to do with it all!

Hibernation

Hibernation isn’t just sleep--it’s how animals go dormant and survive the winter. But do bears really hibernate? You’ll be surprised!

Hiccups

BOO! Everybody’s got a cure, but what’s the cause? Spasms in your diaphragm! Tim and Moby explain.

Hip-Hop and Rap

From 1970s block party breakdancing to today’s rhyme moguls, sample this history of hip-hop and rap!

Hiroshima and Nagasaki

The lesser of two evils? You decide. Tim and Moby talk about the atomic bombs that took an enormous toll on the people of Japan, but ended World War II.

Holocaust

TIm and Moby talk about a dark time in human history, who Hitler was and how he rose to power. You’ll also learn what genocide is, and about the history of anti-semitism in Europe.

Homeostasis

Whenever you sweat, shiver, or get a fever, that’s homeostasis at work! Learn about how we warm-blooded animals stay cool.

Homer

Grab your toga and get ready for some epic tales of the ancient cultures of Greece and Troy.

Honeybees

Tim and Moby don protective beekeeper hats and introduce you to the buzzing, nectar-filled world of queens, workers, and drones.

Hormones

Wondering why you don’t look quite the way you used to? Might be those hormones kicking in for puberty, changing everything from height to hair to body shape!

Horses

Tim and Moby saddle up and talk about our equid friends! From workhorses to thoroughbreds, horses have helped people get work done since...when, exactly?

How a Bill Becomes a Law

It’s not easy to change the law--ask any bill! Tim and Moby follow the process that turns a proposed law into actual law, and encounter the President’s friend, Veto!

Human Body

Step right up! Learn how the amazing human body grows, moves, senses the world, circulates blood, stands strong, and knows when to scream for ice cream.

Human Evolution

From the Flintstones through Darwin, how did humans evolve? Tim and Moby discover our relationship to other primates, and hang with an 800-lb gorilla.

Humans and the Environment

Learn how everyday things we consume affect our environment on a large scale, and how renewable, natural energy resources can help undo the damage.

Humidity

Whether you break a saturating sweat or just get a little dewy, we all know when it’s humid! In this scientific BrainPOP movie, Tim and Moby teach you how air holds water.

Hurricanes

Batten down the hatches! Whether you call ‘em hurricanes, cyclones, or typhoons; they’re pretty scary storms. Tim and Moby tell you what you should know.

Hybrid Cars

A pretty neat invention! Tim tells Moby how a hybrid car combines the engine of a gasoline-powered car with the motor of an electric car in one high-tech package. But what’s regenerative braking?

Hydraulics

Tim and Moby in a piston-packing movie about the engineering feats of hydraulics, which uses the power of liquid to move machines!

Hyphens and Dashes

There are times—Tim is always telling Moby this—when you need to know the difference between hyphens and dashes!

I vs. Me

Getting personal with first-person pronouns is the object of this movie! Or is it the subject?

Ice Age

Learn how alligators could live in the Arctic, and meet some of the cro-magnons and woolly mammoths that roamed the Earth during the last ice age.

Idioms and Clichés

Every village needs an idiom. But using cliches makes for lazy writing!

Imagination

Memories, dreams, creativity, perceptions—All part of the world inside your head.

Immigration

Give me your huddled masses. . . but do they have an alien visa? Tim and Moby talk about the history of immigration in the U.S., and where many of our ancestors first landed.

Immune System

Before your next “Achoo!” Learn about white blood cells, antibodies and how vaccines work. Your body's lookin' out for you!

Impressionism

Impressive that all those little painted brushstrokes started such a big artistic movement.

Inca Civilization

Long before Columbus sailed the ocean blue, the Inca people built a vast empire. So how did how fewer than 200 Spanish conquistadors manage to bring the mighty empire down?

Inclined Plane

What do a doorstop, a ramp, and a screw have in common? Watch this movie to learn how this simple invention makes our lives easier!

Independent and Dependent Events

Flip that coin, roll those dice--but what are the odds you’ll get the outcome you want? Learn how to calculate the probabilities.

Industrial Revolution

Factories, railroads, looms, and steel: The Industrial Revolution made the world smaller and busier! But what negative effects turned out to be long term, and will our planet pay the cost?

Inequalities

Less than? Greater than or equal to? Huh? Learn the basics of inequalities with Tim and Moby!

Infancy

Drooling, teething, and oof--those diapers! Discover the mini-milestones infants go through every day.

Information Privacy

Hark! Who goes there? Learn all about information privacy, why you need a good password, and how to avoid malware and viruses when on the Internet.

Insects

Antennae here, exoskeletons there, insects can be found everywhere! Well, maybe not EVERYWHERE, but bugs can survive in almost any environment.

Interest

Got an interest in free money? Tim and Moby explain how the interest you accumulate is a percentage of what's in your bank account.

Interjections

Oh Boy! The exciting part of Grammar! Interjections!

International Space Station

You'll shuttle out of here and rocket forward as Tim and Moby take you on an animated tour of the International Space Station!

Internet

Ever wonder how information travels over the Internet? Tim and Moby serve up info on the largest computer network on Earth, and what browsers, URLs, and domains are!

Internet Search

Search me? Search you! Tim and Moby know how to research anything online!

Inuit

Do you have what it takes to survive in an igloo, and to drive a dogsled? the Inuits do! How do these Native Americans harpoon a living in such a harsh climate?

Invertebrates

What do you call an animal without a spine? An invertebrate, that's what! Have a little backbone and learn all about these fascinating creatures from Tim and Moby.

Ions

What gives ions their charge? And can you put anions in a salad? Find out in this shocking expose.

Iroquois Confederacy

Learn about the Six Nations of the Iroquois Confederacy, Native Americans who put aside their differences to form a powerful alliance.

Isaac Newton

It isn’t all about the apple! Sir Isaac Newton revolutionized the fields of physics, mathematics and astronomy.

Isotopes

Interested in chemistry? Learn why atomic number and an atom’s mass are so important to understanding isotopes, which are variants of chemical elements!

J. R. R. Tolkien

Take a trip to Middle-earth with Tim and Moby, and learn about fantasy author J.R.R. Tolkien!

Jack London

Tim and Moby follow the tracks of Jack London; sailor, adventurer, politician and famous author.

Jackie Robinson

Discover #42, the great athlete and pioneer who took on the difficult job of ending segregation in baseball. Why was Jackie Robinson’s number retired by every baseball team?

James Madison

Political philosopher and writer (including the U.S. Constitution), ally of Jefferson and fourth President of the U.S., Madison might’ve been only 5”4 but he was a giant of a fellow!

Jane Goodall

Meet Jane Goodall, the famous primatologist and anthropologist who studies chimps in the wild, and is an advocate of ecological preservation.

Jazz

Bang those tubs, Hepcats! Learn the history and basics of jazz, from syncopation and sax solos to swing and bebop!

John Adams

This founding father from Quincy, Massachusetts, was the second President of the U.S., and his writings on the principles of freedom and republicanism were unmatched.

John F. Kennedy

Kennedy was president during the height of the cold war, and presided over the Cuban missile crisis while setting his sights on space travel and leading us towards a New Frontier.

Joints

The Hip Bone’s connected to the Leg Bone. . .but how? Find out how your bones move thanks to joints, and the difference between movable and immovable joints.

Judy Blume

Meet the writer behind "Superfudge" and "Blubber," and learn of her struggle against censorship.

Jupiter

Tim and Moby discuss the largest planet in our solar system, also known as a big gas giant surrounded by orbiting moons: That's right, it's Jupiter!

Juvenile Idiopathic Arthritis

Arthritis doesn’t only affect grandparents; JIA is an autoimmune form of the disease that affects people up to 16 years old.

Kinetic Energy

Kinetic energy relates to motion and speed and mass, and it helps us do practically everything. Get some momentum going and watch this animated movie!

Korean War

Tim and Moby talk about the complicated relationship between North and South Korea, and how the U.S. got involved there in the first conflict of the cold war.

Kurt Vonnegut

Tim and Moby talk foma, wampeters, and granfalloons in our movie on author Kurt Vonnegut!

Land Biomes

Deserts, forests, tundra...Tim and Moby tell us about all the Earth's different biomes and their delicate ecosystems! Anyone for a brief tropical holiday?

Lasers

Nothing says "beam of coherent light" like a laser! Find out how lasers are used in things like consumer electronics, communications and measuring devices, and very delicate medical procedures. Zap!

Latin Music

Ready for some salsa—minus the chips? How about the merengue, or a tango? Learn about Latin Music and the cultures that inspired it.

Latitude and Longitude

You take the high road, and I’ll take the low road. . . watch this movie and you’ll learn how to pinpoint your location on Earth using a special grid, and what the Prime Meridian is.

League of Nations

TIm and Moby discuss the League of Nations, an organization proposed by President WIlson to deal with international disputes. So why didn’t the U.S. join?

Leap Year

Hop on in and learn the compelling reason why February has 29 calendar days, but only once in every four years: It’s all to do with the seasons and the sun!

Leonardo da Vinci

This movie paints a picture of the original Renaissance man: sculptor, architect, engineer, scientist, painter and mathematician. Leonardo!

Levers

From seesaws to tweezers to wheelbarrows, the lever has proven to be one of the best simple machines ever!

Lewis and Clark

Retrace the steps of Lewis and Clark’s bold expedition on their epic journey to the west of America, and their great luck in meeting Sacagawea!

Life Cycle of Stars

Our sun wasn't always the way you see it today. And it won't always be this way in the future! Explore the awesome wonders of red giants, white dwarfs, and black holes in this animated movie!

Light

Radiant, refractant, neon and very, very useful: Tim and Moby make sure you're on the same wavelength as they are about the illuminating subject of light!

Literary Genres

From comedy to mystery to science fiction, stories come in all different types

Logic Gates

Learn how computers process information!

Lord of the Flies

Tim and Moby introduce you to William Golding's great novel about lost children and the island society they create!

Louis Armstrong

Meet the trumpet-playing father of jazz, and find out why his nickname was “Satchmo”!

Ludwig Van Beethoven

He struggled with deafness but rose above it as composer of the greatest symphonies in classical music.

Lyme Disease

From the dangers of deer ticks to info about the “Bull’s Eye” rash--learn about Lyme Disease and how to enjoy summer without it.

Lymphatic System

Learn the mysterious workings of the lymphatic system, a special network of vessels, nodes, and organs that transports nutrients throughout your body. It’s a wild ride!

MP3

Whether it’s an iPod or a Gigabeat, you hear about MP3s all the time, but exactly what are they? Tim and Moby explain this interesting file format in this snappy animated movie.

Magna Carta

What does it mean when a monarchy is consitutional? Learn about the document that limited the powers of England’s kings and inspired America’s Founding Fathers!

Magnetism

You’re drawn to this movie on on magnetism like a compass to the north, aren’t you? Tim and Moby teach you how to create a magnetic field!

Mahatma Gandhi

He showed the world the power of non-violent protest, and highlighted the connection between colonization and racism.

Main Idea

Wait, what was that all about? Get to the gist of it, and learn how to find the main idea!

Malala

The youngest-ever Nobel Laureate

Malcolm X

Learn why this black nationalist and political activist’s convictions led him to reject his last name in favor of 'X'.

Mammals

There are three types: marsupials, placentals, and monotremes. So what kind of mammal is Tim? And what three things do all mammals have in common?

Map Skills

If you didn't know that you never put a compass rose in water, it’s time to let Tim and Moby give you the latitude and longitude of map reading.

Marie Curie

Tim and Moby explore the life of Marie Curie, the famous scientist who coined the term 'radioactivity,' and the first person ever awarded two Nobel Prizes.

Mark Twain

Tim and Moby introduce you to the great American writer and satirist, Mark Twain.

Mars

Take the opportunity to learn about Mars and how it came to be known as the "Red Planet." But guess what planet Mars is most like? Earth!

Martin Luther King, Jr.

“I have a dream ...” Who began one of America’s greatest speeches with those words? Learn about life of the civil rights activist and nonviolent protestor, Dr. Martin Luther King, Jr.

Matter Changing States

Abracadabra! Watch magical Tim take ordinary ice cubes and turn them into water, then steam! But can he reverse the process? Nope!

Maya Angelou

Explore the inspiring life and literature of this Pulitzer Prize-winning writer, poet, and dancer!

Maya Civilization

Join Tim and Moby as they explore this highly advanced pre-Columbian civilization and its hieroglyphs, pyramids, and Yucatan culture. But what caused the Maya’s collapse…?

Mean, Median, Mode, and Range

Tim and Moby in a practical math movie where you can learn how mean, median, mode, and range help you work with sets and data!

Measuring Matter

Learn to measure matter in this movie on mass, volume, and density! But why is measuring matter so very important? Tim and Moby up your science skills.

Melody and Harmony

See how a simple tune can turn into a masterpiece with melody and harmony!

Mercury

Mercury is the closest planet to the sun, so it takes a lot of solar heat! Take a (very) warm and wonderful voyage with Tim and Moby to find out more.

Mesoamerica

Get a glimpse of some of the most advanced civilizations in the history of the New World, including the Olmec, the Maya, and the Aztec. Moby’s there too, of course!

Metabolism

Catabolic, Anabolic, and Chloroblasts! No, not the names of Moby’s cousins, but a movie about the metabolism, the chemical reactions that allow all cells to function.

Metals

Learn about the luster and conducting magic of the elements and alloys we call metal, what oxidation is, and why ductility and hardness are so important. This movie's pure gold!

Metamorphosis

Come learn how tadpoles become frogs and caterpillars blossom into butterflies, through the transformation known as metamorphosis! But how can it be incomplete?

Metric Units

Learn how easy it is to convert centimeters to meters or kilograms to milligrams. But what do King Henry and chocolate milk have to do with it?

Metric vs. Customary

Why’d the metric system’s inventors chose 10 as a base? The answer’s at your fingertips!

Mexican Revolution

Meet the leaders and heroes of the Mexican peasants’ rebellion against oppression, from the visionary Madero to the legendary “Pancho” Villa. Viva la revolución!

Mexican-American War

Did you know the U.S. nearly doubled its size in the middle of the 19th century? Tim shows you how Texas’ annexation as the 28th state led to the Mexican-American War.

Michelangelo Buonarroti

“He’s good but he’s no . . . oh wait, he is Michelangelo!” Learn about the master Italian renaissance sculptor, painter, architect and artist.

Microscopes

Tim and Moby teach you how microscopes use convex and concave lenses to magnify objects we want to see super-close. It's like ocular magic!

Middle Ages

A time of darkness between the fall of Rome and the Renaissance, or a thousand-year era amazing artistic, poetic, and architectural achievements? You decide!

Migration

Those seasonal flocks of birds over your head, intent on Florida? That's migration, the instinctive re-homing of animals caused by changing seasons.

Milky Way

Tim and Moby spout off fun facts about the galactic spiral of stars that is the Milky Way, the place Earth--and the rest of our solar system--calls its home.

Mineral Identification

Is this a diamond I see before me? Or Quartz? Maybe it's graphite? Learn how to identify similar-looking rocks using the Moh's hardness scale.

Miranda Rights

You have the right to remain silent and enjoy this movie on the Miranda Rights! Discover what rights are guaranteed to a police suspect, and which Constitutional amendments insure those rights.

Mitosis

You'll find out how cells divide, how organisms grow, and what chromosomes do, as Tim and Moby explain the stages of mitosis in this BrainPOP movie.

Mixed Numbers

I say! Did you know a fraction can be improper? Tim and Moby teach you all about mixed numbers.

Moles

Sorry, no furry critters involved in this movie! The mole's an important concept in chemistry which is ideal for counting tiny particles like atoms and molecules.

Mollusks

How do clams move? What makes squids ink? Is an octopus symmetrical? Tim and Moby help you wrap the tentacles of your mind around the lives of mollusks!

Money

Tim and Moby travel back in time to find the origin of money and how we got from trading cows to bartering favors to paper and coins. This money movie's minty fresh!

Monotremes

Throw a shrimp--or some termites--on the barbie and learn about monotremes, the weird and occasionally duck-billed group of mammals found mainly in Australia.

Mood and Tone

Find out how mood and tone affect the style of a piece of writing!

Moon

Space is vast, but we're lucky to have a close neighbor: It waxes, it wanes, it controls the tides! Watch this movie to learn about our planet's nearest companion, the moon.

Moon Phases

Kids aren’t the only ones who go through phases: The moon has a few of its own. Waxing and waning you might have heard of, but what's a gibbous moon?

Mortgages

Tim and Moby give you some prime information on what happens when the bank loans you money to buy a home.

Motherhood

Learn about what goes on in a woman’s body as a baby develops inside her womb. And why’s it called morning sickness, when it can happen all day long? Not fair!

Mount Everest

As every Himalayan mountaineer knows, at the top of Mount Everest every breath contains only one-third of the oxygen you get at sea level. Good thing Moby has built-in oxygen tanks.

Mountains

Ah! The beauty of a mountain's peak, the drama of a volcano’s eruptions. Tim and Moby tell you how these are served up on (tectonic) plates!

Mourning

How do we grieve for the dead? Different ways in different cultures, but ceremony, commemorations and memorials help to alleviate and share our grief.

Multiple Sclerosis

Learn about this unpredictable autoimmune disorder, its symptoms, and what people are doing to help find a cure!

Multiplication

Tim and Moby are at the zoo, and need to use simple multiplication skills in order to feed the animals. Factor 6,000 peanuts times 3,000 bananas...

Multiplying Decimals

Put your money where your decimal is by learning how to multiply decimals!

Multiplying and Dividing Exponents

This BrainPOP algebra movie gives you the power! Tim and Moby multiply and divide numbers with exponents.

Multiplying and Dividing Fractions

Tim and Moby show you how to multiply and divide fractions in this BrainPOP movie! Dividing can actually make a number bigger?!

Mummies

Follow the Egyptian mummification process step by step, and learn how the people preserved their Pharoahs and prepared them for the afterlife. But why were the tombs so fancy? Moby knows!

Muscles

Flex those abs, pecs, and triceps--but watch out for cramps! All about our muscles, how they work and what powers them.

Musical Scales

Pitch, Octaves, and Harmonies--get the do-re-mi on how music is made!

Nails

Scratch the surface of this movie and learn about your finger and toe nails! Why you shouldn’t bite ‘em, what they allow you to do, and how much they grow in a year.

Nanotechnology

A microscopic robot roaming through the human body, killing cancer cells--wasn't there an 80s movie about that? Tim and Moby wrap their tiny minds around the weird science of nanotechnology!

Napoleon Bonaparte

This defender of liberty became just another power-grabber, or did he? Learn about the Corsican general who became Emperor and eventually met his Waterloo when fighting the English.

Natural Disasters

We can’t control ‘em, but we can be informed and prepared. Tim and Moby talk hurricane, earthquakes, tornadoes and other natural disasters.

Natural Resources

We thought we could never use up the forests, trees, soil, plants and water. We were wrong. Learn how we can renew our precious natural resources!

Natural Selection

Find out how Darwin went to the Galapagos Islands and discovered how species adapted surprisingly, evolved differently, and yet are still connected.

Neptune

Tim and Moby check out the little blue planet of Neptune and the funky clumpy rings that surround it.

Nervous System

It helps you tickle, itch, and recoil! Don’t get nervous about this movie--learn how the nervous system coordinates all your actions.

Neurons

These brain transmitters are like organic wires, carrying thoughts and senses around your body!

New Deal

The New Deal (and Social Security) grew out of the Great Depression of the 1930’s, and from FDR’s fireside chats with the American people. Learn about the programs that preserved lives and dignity.

New Year's

It's celebrated the world over, but not always at the same time, or in the same way! Tim and Moby make a resolution to take you to different corners of the globe to celebrate the new year!

Newton's Laws of Motion

How can anything find the momentum to accelerate from a resting point? And why would it bother? Isaac Newton figured it out, and Tim and Moby explain it in this movie!

Nikola Tesla

Step into the world of Nikola Tesla, the man who electrified our lives!

Nitrogen Cycle

Explore how gaseous nitrogen is transformed into proteins that can be used by plants, animals, and even people! Tim and Moby follow the path of a nitrogen molecule.

Nobel Prize

It’s one dynamite prize! Learn about Sweden’s annual Nobel Prizes, and people you know who’s won (Hemingway, Curie, Einstein, Obama...)

North Pole

Grab your compass and a warm coat, and come on a little polar expedition with Tim and Moby. You’ll meet Inuit and seals, see a few ice caps, and think about what global warming might do to it all!

Note-Taking Skills

Taking notes helps you learn while you listen!

Nouns

They’re plural, they’re proper, and good luck speaking without them! Tim and Moby talk nouns.

Nuclear Energy

Unlock the awesome power of the atom with this movie on nuclear power! Learn the pros and cons of nuclear energy, plus some alternatives scientists are researching.

Nutrition

Feeding your body empty calories is like trying to fuel a car with mud! Learn the hows and whys of a balanced diet, from proteins to carbs to vegetables.

Obesity

Explore the roles that diet, physical activity, and genetics play in the obesity crisis, and learn the choices you can make to stay healthy. (Mmm, grapes!)

Ocean Currents

How does warm water from the tropics causes mild climates in Western Europe? What’s a gyre? And the global conveyor belt? The answer's current, baby--ocean current.

Ocean Floor

Underwater mountains and shelves? Discover how ocean currents and the movement of tectonic plates forms trenches, valleys, plains, and ridges.

Oceans

Atlantic, Pacific, Indian...it’s really all one continuous oceanic mass that takes up more than 71% of the Earth. Know your salt about our oceans!

Olympics

What happens every four years, involves bronze, silver, and gold medals, and is loads of fun? Why, the Olympics, of course! Learn about this international pursuit of excellence.

Online Safety

The Internet is useful and fun, but is it safe? It can be, if you follow Moby's simple tips and learn about digital citizenship and how to manage chat rooms, IMing, and cyberbullying!

Online Sources

Whether in a chatroom or emailing, you need to know how to identify the reliable and the untrustworthy online sources!

Oprah Winfrey

From Mississippi to Chicago to the World, Oprah Winfrey has become one of the most influential people in the media. Get to know this talented game-changer!

Order of Operations

Tim and Moby order you to make math easier! Addition, subtraction, or division, you’ll get it all serenely sorted

Organic Food

No hormones, radiation or genetic modification--but is organic food actually healthier? Tim and Moby chew the subject over.

Ottoman Empire

Witness the rise and fall of the mighty Ottoman Empire, one of the largest empires in world history!

Outer Solar System

Find out what kind of interstellar orbiting is going on in the far reaches of the solar system, and just what Tim and Moby have to say about it.

Outlines

Tim and Moby show you how to research and organize your thoughts on a topic before you write!

Ozone Layer

Trust us on this: You love the ozone layer! Find out how changes to the earth’s atmosphere have affected the sun’s rays, and what we can do about it.

Pablo Neruda

Meet the famous Chilean poet, statesman, and political activist.

Painting

It started with the cavemen (though they weren’t big on abstracts or acrylics.) Get perspective on one of the world’s oldest art forms.

Pandas

What’s black and white and endangered and so cute it hurts? Pandas! Find out what’s being done to help our bamboo-eating pals.

Parallel Structure

Use the simple rhetorical technique of parallelism to make your writing stronger and more persuasive!

Parallel and Perpendicular Lines

Tim and Moby give real-world examples of lines that are parallel, lines that are not parallel, and lines that intersect parallel lines.

Paraphrasing

Learn how to use quotes or or when to summarize to paraphrase, not plagiarize!

Parts of Speech

An explanation of the basic parts of speech: nouns, verbs, adjectives, and adverbs.

Passive Transport

Tim and Moby teach you about passive transport and how cells’ membranes get everything they need from their environment.

Pasteurization

Watch this movie and don’t cry over unspoilt, pasteurized milk! And if pasteurization kills bacteria and germs, what’s ultrapasteurization?

Pax Romana

It wasn’t all gladiator battles and colosseums! The Pax Romana was a time of great peace and human advancement in government, law, and art. Tim and Moby don their togas.

Peak Flow Meter

Don’t gasp! Instead, learn all about peak flow meters, inhalers that calm your lungs and help control asthma.

Peer Pressure

We all want to be popular, but there's a difference between friendship and conforming. Learn how to cope when the pressure’s on.

Pelé

One of the world’s great athletes, Brazilian-born Pelé broke records in the World Cup, then became the face of the American soccer league, too. Not bad for a poor kid who started at just 15!

Penguins

They’re flightless, tuxedoed, and occasionally even emperors--plus, they drink saltwater. Talk about an odd bird. Tim and Moby do!

Percents

Learn to rock the three ways of dealing with percents! Using proportions, beginning with a percent, and finding the percentage of any given number.

Percussion

Tim and Moby snare that rhythm and tell you all about rappin' a percussive beat!

Period

Dealing with periods, cramps, and the menstrual cycle doesn't have to be difficult, not if Cassie and Rita have anything to say about it!

Periodic Table of Elements

Learn about all the elements on earth, plus their atomic mass and alkaline content, on the wondrous chart known as the Periodic Table of Elements!

Personal Pronouns

Find out how personal pronouns refer to their antecedents.

Photography

From Daguerreotypes to photojournalism to your school picture (aww!), photography shows us how we live.

Photosynthesis

Learn how solar energy is turned into chemical energy and how plants create glucose, their main source of fuel. But remember, you still have to water them!

Pi

Discover where the concept of pi comes from, what ratio it represents, and why all circles have it in common. Mmm, Pi!

Pirates

Avast ye, matie! Learn about the fearsome Blackbeard, and the secret buried treasure of Captain Kidd. Tim and Moby walk the plank to give you the legacy of the pirates' golden age.

Plagiarism

Don’t steal words: Learn what plagiarism is and how to avoid it!

Plant Growth

How does your garden grow? Flowers, fruit, and photosynthesis! Plus a whole mess of pollination. . .

Plastic

There's a future in plastics, and also a past! From the rubber balls the ancient Mayans used, to the polymers of today, learn about this versatile (and non-renewable) stuff.

Plate Tectonics

The continents of Earth weren't always like you see them today. Learn about continental shifts and plate tectonics which slowly--or quickly--change the face of our planet.

Pluto

Aww, let Pluto be a planet! No? Well, instead let's learn all about the dwarf planet Pluto, how it got demoted, and about its weird orbit and moons!

Pocahontas

Learn about the Native American woman who risked her life to save an English settler at Jamestown, and helped the colony survive its first, difficult years. But why did she change her name?

Poetry

Tim and Moby get all poetic on you! The rhyme, rhythm and verse of one of the oldest literary forms.

Point of View

In this BrainPOP movie, Tim and Moby give you perspective on point-of-view in writing.

Political Beliefs

Democrat, Republican, or Green party, it’s important to understand what forms political beliefs, and how political ideologies divide opinions. Tim and Moby vote for you to watch this movie!

Political Parties

Learn the origins of and differences between Democrats and Republicans, plus the party affiliations of our most famous Presidents. But what about our nation’s smaller parties? And do any of these parties serve cake?

Political Party Origins

Say howdy to Founding Fathers like Thomas Jefferson, Alexander Hamilton, and James Madison, and discover the roles they played in the establishment of America’s two-party system.

Pollination

Hop from flower to flower as Tim and Moby explore pollination, pistil to stamen! And that's before we've even brought the birds and the bees into it...

Polygons

Learn what makes a polygon a polygon, what segments and vertices are, and some crazy names for shapes you already know! Enneagon, anyone?

Polyhedrons

Poly-who? Tim and Moby discover new names for pyramids and cubes, and learn some really long names for even more complicated figures!

Polynomials

Find out the difference between a monomial and a polynomial in this BrainPOP algebra movie.

Pop Art

Through its use of irony, comics, and Campbell’s soup cans, this 20th-century movement turned the art world on its head.

Population Growth

Our population is exploding! Tim and Moby talk about how that affects our resources and environment in this animated BrainPOP movie.

Portraits

Become an art detective: Use visual clues to discover all the things you can learn about a person from their portrait.

Possessives

Hey--that’s mine! Discover the grammar of ownership by using apostrophes, possessive nouns, and pronouns.

Potential Energy

How do you know if an object has potential energy? Listen to Tim! Learn about forces, gravity, movement, and how energy can change or be transferred.

Power

What's it take to get work done quickly? Power, dude. Power. Tim and Moby discuss power and its cousins, work, effort, and force!

Precision and Accuracy

Bull’s Eye! Learn the difference between precision and accuracy, which are kind of like measurements of measurement!

Prepositional Phrases

Learn what a preposition is and how to identify prepositional phrases.

Presidential Election

Getting elects POTUS is no easy feat! Follow candidates from primaries to nominating conventions to Election Day, and learn about things like tickets, platforms, and the Electoral College.

Presidential Power

Learn about the daily work of the President, the powers he has and doesn’t have, how his policies affect other branches of government, and all about the Commander-in-Chief’s interesting friend, Veto!

Prewriting: Choosing a Topic

Learn some prewriting strategies that will help you to generate ideas and find a topic that gets you going!

Prewriting: Organizing Your Thoughts

Save time by organizing your thoughts and mapping out your writing!

Primaries and Caucuses

Whether you’re in Iowa or New Hampshire, all politicians know that primaries and caucuses are the road to the big elections in November! So what’s the difference between the two, and does a super-delegate wear a cape?

Primates

Tim and Moby are bananas about the diverse group of mammals that includes monkeys, apes, marmosets, and you!

Prime Numbers

Learn how every whole number greater than 1 is either a prime number or formed by multiplying prime numbers together. And the biggest prime number? No one knows!

Printers

Inkjet, laser and...well, that’s pretty much anyone knows about printers! Let Tim and Moby get you all inky with information about how that useful device works and just what a printer drum does.

Problem Solving Using Tables

Math tables don’t have salt shakers! Tim and Moby help you solve problems using rows, columns and data.

Property Changes

It's nothing about flipping houses. Find out the difference between chemical and physical changes, and learn some real-life examples. Ice cream, anyone?

Proportions

Tim and Moby time travel and cross-multiply! Learn how figure out the price of a movie ticket in proportion to income, and how to compare it to prices from earlier decades.

Protists

Protists have only one single eukaryotic cell, and some of them move! So you might find a few in the bottom of that very old yogurt pot (or you could just watch this movie).

Protozoa

Little guys that make a big difference! Protozoa are single-celled forms of life that can live inside other organisms as parasites, or in a state of symbiosis.

Puberty

Taller, hairier, and oh so hormonal! Tim and Moby take us through the wild maturing time known as puberty.

Public Speaking

Don’t be scared, be prepared! Tim and Moby’s tips for delivering a successful report or speech.

Pulley

The pulley is a super simple machine, that lets a person lift more than their own body weight! Tim and Moby discuss the concepts of resistance force and effort force, and how different pulleys can save you sweat and tears.

Punctuation

Punctuation’s function? It helps us understand who’s talking about what!

Pythagorean Theorem

Tim and Moby use the Pythagorean theorem to find the measurements of a right triangle’s hypotenuse and legs. Bet you didn’t know a triangle had legs!

Queen Elizabeth I

It’s good to be the queen--but rarely easy! Elizabeth I was a major figure of the Renaissance, a powerful leader and foe, and the final ruler of the Tudor dynasty.

Queen Elizabeth II

The only living head of state who served in World War II, since 1952 Queen Elizabeth has maintained a steadfast presence as the Head of State of Great Britain and the Commonwealth of Nations. Spot of tea, anyone?

RNA

Say hello to DNA’s little friend - RNA! Learn about the similarities the two share and how they work together to communicate with cells and create complex molecules like proteins.

Rachel Carson

Rachel Carson’s Silent Spring kickstarted the modern environmental movement and inspired millions. One book really can change the world!

Radar

Say--Is it coming towards or away from me? Tim and Moby talk about about the four main parts of a radar system, and how they all work together to find out location, speed, and direction.

Radio

Moby gets a little sentimental with all of TIm’s talk of antennae and transmissions, because radio broadcasts were the first real home entertainment systems! Learn about the difference between AM and FM, and how radio waves bounce into your home.

Radioactivity

When an atom gets unstable, watch out! In this movie you’ll see what kinds of rays or particles radioactive decay can create. Gamma-ray alert!

Railroad History

Whoo-whoo! One of the most important developments of the 19th century, railways spanned continents, enabled the settlement of the American West, and even helped the North win the Civil War!

Rainbows

Refraction, reflection, dispersion! Find out what’s really going on inside raindrops as sunlight separates into the wondrous colors of a rainbow.

Ramadan

Millions of Muslims follow the rules of Ramadan set out in the Koran, Islam’s holy book. Learn how Ramadan helps believers embrace the virtues of charity, self-discipline, and family togetherness.

Rational and Irrational Numbers

Tim and Moby introduce you to the difference between rational and irrational numbers. Remember, kids: Fractions put the “ratio” in “rational”!

Ratios

Nothing compares to this excellent movie! Nothing is a quarter as fascinating as this whole movie on ratios!

Reading Music

Not so sharp on finding the beat? We’ll pitch what you need to know about bass, treble, rhythm, and all the do-re-mi!

Reading Skills

Tim and Moby tell you how to up your reading skills: Prepare, preview, skim, jot notes and make a movie in your head!

Reading a Newspaper

It’s one of the best ways to stay informed: Find your way around a newspaper, from byline to headline, sports to culture.
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