Science Lessons
BrainPOP Lessons organized by Topic.
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.
Active Transport
Cells need nourishment, too! Tim and Moby introduce you to active transport, where substances move through gaps in a cell membrane.
Air Pollution
Air pollution is bad for people and for the environment. Tim and Moby will show you how it is created and how to prevent it!
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.
Amphibians
Learn the life-cycle of amphibians, those super-adaptable creatures that include frogs, toads, salamanders, and newts. Ribbit!
Ants
Are ants pests, or fascinating escoskeletal insects with a complex social network of drones and workers? Moby knows the answer!
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?
Asexual Reproduction
It may take two to tango, but it only takes one to reproduce asexually!
Asteroids
A shooting star may have wiped out the dinosaurs!? Find out more about the space rocks known as asteroids.
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.
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.
Bacteria
Microscopic bacterium exist everywhere--even on our bodies! Learn how these microorganisms can be good or harmful.
Bats
Cave-dwelling, fruit-eating mammals with a bad vampire rep! Is it true? Learn about the echolations of our bat-pals.
Big Bang
Learn about the theory that explains the earliest moments in the history of our universe, and how scientists came up with it.
Birds
If you’re not already a bird nerd, you will be after this movie! Join Tim and Moby to see some birds in action—no binoculars necessary.
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!
Buoyancy
Throw an anchor into the ocean and it sinks. So why does a boat holding an anchor float? Discover the mysteries of buoyancy!
Camouflage
Learn about camouflage, the protective coloring that allows animals to survive by blending into the background.
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!
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!
Cats
Hello, kitty! Cats and the Internet go together like whisker and purr. Watch this movie to learn all about our feline friends.
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.
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.
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!
Classification
How do scientists order the millions of organisms and species on Earth? Class, family, species...We're not sure about Moby.
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
Dolly might be the most famous clone—but she wasn't the first! Learn the past history and future challenges of creating genetic duplicates.
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.
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.
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?
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.
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.
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.
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.
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?
Diffusion
Do you smell a funny odor? Don’t let it disturb your equilibrium, instead thank diffusion!
Dinosaurs
Tim and Moby take you on a dino-mite adventure through the world of the extinct
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!
Droughts
Learn how local weather and climate conditions can lead to long-term water shortages.
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.
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
Ecosystems are all about community—but not always in a friendly way! Learn how organisms’ relationships with each other and their environment perpetuate life on Earth.
Electromagnetic Spectrum
Somewhere, over the...electromagnetic spectrum? Learn about radars, light wavelengths, and radiation. You won't get this story over the radio!
Elephants
Meet the elephant, an endangered animal found throughout Africa and Asia that’s big on brainpower, big on appetite, and just plain BIG!
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?
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...
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!
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.
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.
Fish
Cold-blooded, scaly, and tasty vertebrates! Tim and Moby fill you to the gills with information about our finned friends, the fish!
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.
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 Webs
Everybody eats! Sort of! All living things need food to survive, whether they make it on their own or chow down on other organisms.
Forces
Forces constantly push and pull on everything in our world, including you! Find out how different forces make objects start, stop, stay, and go!
Forms of Energy
Get all charged up about energy with Cassie and Moby! They’ll introduce you to some of energy’s many forms, and how we use them.
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.
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.
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.
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!
Gravity
It controls the tides, helps planets orbit, and keeps us all on Earth! Tim and Moby give gravity some love.
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.
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.
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!
Honeybees
Tim and Moby don protective beekeeper hats and introduce you to the buzzing, nectar-filled world of queens, workers, and drones.
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?
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
Water, water, everywhere—even in the air! Learn about humidity's role in weather and the water cycle.
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.
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.
Insects
Antennae here, exoskeletons there, insects can be found everywhere! Well, maybe not EVERYWHERE, but bugs can survive in almost any environment.
Intro to Scientific Method
Learn about the steps of the scientific method, and how scientists use it to explain why things happen the way they do.
Invasive Species
Most organisms can't survive outside their natural habitats. But invasive species thrive—and damage their new environment in the process!
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.
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!
Jupiter
Everything's bigger on Jupiter—from the size of the storms to the pull of gravity itself! Learn more about the largest planet in the solar system.
Kinetic Energy
Kinetic energy helps us do almost everything, from work to play. It’s what makes the world go round!
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?
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
Introduce the idea of light as a wave, and explore its behaviors, such as reflection, absorption, transmission, and refraction.
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?
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!
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!
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.
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.
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?
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.
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.
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!
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.
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?
Mountains
Ah, the beauty of a mountain's peak, the drama of a volcano’s eruption! Find out how these are served up on (tectonic) plates!
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.
Newton's Laws of Motion
From shooting basketballs to shooting stars, Newton’s laws explain motion across the universe.
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.
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.
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.
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.
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.
Passive Transport
Tim and Moby teach you about passive transport and how cells’ membranes get everything they need from their environment.
Penguins
They’re flightless, tuxedoed, and occasionally even emperors--plus, they drink saltwater. Talk about an odd bird. Tim and Moby do!
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!
pH Scale
How does acid eat through stuff? What happens when you combine an acid with a base? Tim and Moby explore these questions and more in this non-neutral movie on the pH scale!
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!
Plant Growth
How does your garden grow? Flowers, fruit, and photosynthesis! Plus a whole mess of pollination. . .
Plate Tectonics
How did one continent become seven? Join Tim and Moby on their expedition to explore plate tectonics!
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!
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...
Population Growth
Our population is exploding! Tim and Moby talk about how that affects our resources and environment in this animated BrainPOP movie.
Potential Energy
What’s full of energy, even when it’s perfectly still? Anything that has potential energy!
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!
Primates
Tim and Moby are bananas about the diverse group of mammals that includes monkeys, apes, marmosets, and you!
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?
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.
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!
Rainbows
Refraction, reflection, dispersion! Find out what’s really going on inside raindrops as sunlight separates into the wondrous colors of a rainbow.
Refraction and Diffraction
Why do prisms do what they do to light? How do sound waves spread? And why do refraction and diffraction sound the same, but act so different? Answers inside.
Relativity
Sometimes science is stranger than fiction! Stretch your brain to the limits of space and time in this animated movie!
Reptiles
Cold-blooded and hot off the presses! Learn all about reptiles in this BrainPOP movie.
Rivers
Open the floodgates of information to learn how rivers form, how they shape land, and how they’ve influenced human history.
Rock Cycle
Build a foundation for understanding Earth’s geological processes by following the transformation of rocks into different types.
Saturn
There's more to Saturn than just rings! (Although we admit the rings ARE pretty cool.) Learn about the beautiful gas giant in this animated movie!
Savanna
What's that lurking in the tall grass? Lions, cheetahs, and wildebeests love the Savannah, and you will too! Learn about the climate of this grassy biome.
Science Projects
We’ve come to the conclusion that science projects rock! Learn about hypotheses, how to conduct experiments, and other science skills.
Scientific Method
Apply the scientific method to investigate ideas and craft explanations based on data.
Seasons
Spring into action! Find some summer love! Fall into this movie and learn about the seasons! Um. Uh, Winter! Winter, Winter, Winter.
Seed Plants
Fruit and flowers are pretty (or tasty) transports for gymnosperms and angiosperms, which keep plant life vibrant on Earth.
Seedless Plants
Move over, seed plants--the history of life on Earth would look a whole lot different if it weren’t for ferns and mosses! Tim and Moby don't spore a single detail.
Six Kingdoms
Sounds like a Tolkien book, but really the six kingdoms are about the classification of all species on earth. What kingdom do you belong in? How about Moby?
Snowflakes
Oh beautiful latticed icy crystals, how do you form? As you’d imagine, this winter-fresh snowflake movie is pretty cool!
Soil
What's the difference between dirt and soil? How about between weathering and erosion? Tim digs for answers in this movie about the earth on Earth!
Solar System
Planets, moons, comets, and asteroids—learn what makes our solar system out of this world!
Solstice and Equinox
The longest day of the year? We love it! Follow planet Earth around the sun and the sun across the sky as we learn about solstices and equinoxes!
Sound
Shhh...Can you hear that? It's the sound of a swell movie about sound! Learn how pitch, frequency, and vibration influence everything you hear.
Spiders
Yep, they crawl, spin webs, and suck the blood out of their prey. But spiders do a lot of good, too! Learn all things arachnid in this BrainPOP movie.
Sponges
Some sponges you use to clean the dishes, but some are ALIVE! So put down that loofah and thrill as Tim and Moby tell you all about this invertebrate animal!
States of Matter
Solid, liquid and gas can be different states of the same matter. How? Tim and Moby show you how changes in temperature can really affect a molecule.
Static Electricity
It’s shocking! It’s current! This movie will spark your interest in static electricity (and teach how those charged atoms can make your hair stand on end).
Sun
How cool would it be to have your very own star? Well, guess what - we do! So slather on the SPF and watch this movie about our life source, the Sun.
Symbiosis
You scratch my back, and I’ll show you a movie on Symbiosis! It’s a mutual relationship between species that can be beneficial or (hello, fleas!) parasitic.
Taiga
If you’re all about a sub-arctic forest biome, the Taiga is for you! And so’s this movie on this ecosystem and its long, long winters.
Temperature
Feeling a little hot under the collar? Or are you cool as a cucumber? Get a degree of information about temperature in this animated movie!
Thunderstorms
What's that rumbling in the distant sky? It's rain! It’s lightening! It’s a thunderstorm! Tim and Moby investigate these awe-inspiring storms.
Tides
Find out how the moon controls the gravity of tides on Earth, and how tides can provide us with renewable energy sources!
Tornadoes
Come out of your basement and click on this weather movie about twisters, the windy natural disasters caused by changes in air pressure and wind direction!
Tropical Rainforests
Welcome to the jungle! Learn how plants and animals are specialized for life in tropical rainforests.
Tsunami
A shifting of tectonic plates, an underwater earthquake, a tidal surge and then--Tsunami! Learn about these forces of nature from Tim and Moby.
Tundra
What's cold and dry and fragile but neat all the same? Why, it's tundra! Learn about this biome here! And let Moby know if you see any reindeer.
Types of Rocks
What’s lava got to do with it? Did you know there are types of semi-liquid which can form rocks? Tim and Moby talk igneous and marble, erosion and minerals.
Underwater World
Oh coral reefs, underwater canyons, and waving sea anemone. . . let’s visit the world beneath the sea, for more than the halibut.
Uranus
Learn about the seventh planet from the sun, a weird place with flipped seasons and loads of orbiting rings!
Vertebrates
You crazy vertebrate, you probably haven’t even thanked your spine and skeleton today! Tim and Moby put a little backbone into this animated movie.
Volcanoes
Violent eruptions! Huge plumes of gas! Rivers of molten lava! This movie investigates all this stuff and more!
Water
Two-thirds of the earth is covered with it! It makes up most of your body weight! In this animated movie, Tim and Moby dive into the subject of water.
Water Cycle
Follow water’s journey around the planet, and relate the water cycle to other Earth systems.
Water Pollution
Learn how sewage, chemicals, and factory waste affect the water on our planet. Tim and Moby talk about how we can clean up our rivers, lakes, oceans, and seas!
Water Supply
The biggest difference between seawater and freshwater? Only the latter is drinkable! Learn how only a tiny fraction of the world's water is safe for humans, and how to conserve this resource.
Waves
Ocean waves and sound waves are really similar: They've got troughs and crests, and frequencies and interferences, but did you know earthquakes travel in waves, too?
Weather
Weathermen always going on about storm fronts and barometers, what does that mean exactly? Tim and Moby give you a hailstorm of weather information.
Weathering
Learn how rocks break down into soil and how natural forces like wind and rain can actually change the shape of Earth’s surface.
Wildfires
Brush up on wildfires—learn why they spread, how they can be helpful and what you can do to stay safe.
Wind
Where do those gusts come from? The answer, my friend, is blowing in the wind. . . and in the jet streams, and the doldrums.
