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Space & Astronomy Classes for Kids

48 free space & astronomy classes for kids (Ages 6–12) on Wunder — short, fact-checked courses and lessons with narration and a quiz. Filter by age — each link is its own page, not a JavaScript toggle.

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How to make french toast

Dry the bread, mix three eggs to a cup of milk, and soak until a slim dry spine remains. A first plate tonight, with the science that keeps the center custard.

How to make mashed potatoes

Rinse the starch, rice the russets, fold the butter before the milk. A first pot tonight, with the science that keeps it fluffy.

Ten marks from the top

Sit, hold, start at the top. Learn the ten written marks for 0 to 9, and why a six is not a nine.

Why Polar Seasons Are So Extreme

Discover why the poles have a summer where the Sun never sets and a winter of darkness, all because of the way our planet leans.

Earth's Frozen Water

From glaciers to sea ice to snow, explore the cryosphere, all of Earth's frozen water, and discover why it matters for the whole planet.

Comparing the Arctic and Antarctic

Explore the two frozen ends of our planet and discover why the icy north and the icy south are surprisingly different worlds.

What Living Things Need

Every living thing needs food, water, air, shelter, and space. Discover what keeps people, animals, and plants alive.

Life Cycles of Living Things

How living things are born, grow up, make young of their own, and start the whole cycle again — from frogs and butterflies to plants and people.

The Ocean and Climate

Discover how the giant ocean soaks up heat, makes clouds and rain, and helps steer the whole planet's weather.

Peek into the little pools left behind when the sea goes out, and meet the starfish, crabs, and colourful creatures that live in them.

Ocean Currents and Global Heat

Follow the global conveyor belt, a worldwide loop of currents that moves heat around the entire planet.

How We Explore the Ocean

Climb aboard submersibles, listen with sonar, and pilot robots to explore the deepest, darkest parts of our planet.

Sorting Materials into Groups

Let's put things into groups! Sort by hard or soft, shiny or dull, and floaty or sinky, and become a sorting star.

Evaporation and the Water Cycle

Where does a puddle go when it dries? Follow water as it evaporates, forms clouds, and falls again on its never-ending journey around our planet.

Relative Motion

Are you sitting still right now — or hurtling through space? Both can be true. Discover how motion depends entirely on who is watching.

Predicting How Things Move

Every wobble, roll, and zoom starts with a push or a pull. Learn what forces do to moving things — and start predicting what happens next.

Protecting Earth's Resources

Explore the natural resources our planet gives us, how they can be harmed, and the everyday ways we can protect them.

Life Cycles and Reproduction

Follow living things from the start of life through growing up and making new life, in plants and animals alike.

How Sunlight Warms the Earth

Meet the sun, our closest star, and see how its light travels to Earth to warm the ground, make warm days and cool nights, and help plants grow.

Weathering and Erosion

Weathering breaks rocks into pieces; erosion carries the pieces away. Together they slowly reshape the whole planet.

Where does dirt come from? It starts as solid rock! Follow the amazing journey as big rocks slowly break down into the soil that plants need to grow.

Land and Water on Earth

Earth is a big ball of land and water. Explore the oceans and continents, climb the mountains, and follow the rivers as you discover where all the land and water on our planet can be found.

Famous Dinosaurs

Meet the superstar dinosaurs everybody knows — the mighty T. rex, the horned Triceratops, the plated Stegosaurus, and more. Learn what made each one special.

Counting by 3s and 10s

Count forward and backward in threes from zero, then in tens from any starting number — even odd ones like 7, 17, 27.

Listing All the Possibilities

Three starters and four mains - how many different meals? Learn to list every combination in an organized table so nothing gets missed and nothing gets counted twice.

Counting to 100

March all the way to 100 — starting from zero, one, or any number in between — and practice counting backward down to zero, too.

Adding in Any Order

Discover that 3 + 8 and 8 + 3 give the same answer — and use that to always start from the bigger number and count on less.

Adding in Any Order

Discover that 3 + 8 and 8 + 3 give the same answer — and use that to always start from the bigger number and count on less.

Monarch Butterflies!

Meet the tiny orange traveler that starts as a dot on a leaf and flies all the way to a secret forest in Mexico.

Meet the furry builder with orange teeth who chops down trees, builds dams you can see from space, and makes homes for hundreds of animals.

Great Inventors!

Meet real inventors, from Edison's lightbulb team to a kid who invented the popsicle, and discover that every invention starts with noticing a problem!

Robots & AI Together!

Meet real robots that build cars, help doctors, and even roll across Mars, and find out how they sense, think, and act just like a team!

Atoms: The Tiny Everything!

Shrink down smaller than you can imagine and meet atoms, the tiny building blocks that make up everything in the whole universe, including you!

How astronauts get picked, train in a giant pool, ride a rocket, live while they fall around Earth, and come home as a fireball.

Flap into the amazing world of bats, the only mammals that truly fly, and discover how they see with sound and help our planet.

We Went to the Moon!

The Apollo story — countdown, landing, moonwalk, and coming home.

Rockets & Spaceships!

How do rockets blast off and fly all the way to space? Let's find out how they push, what they're made of, and meet some famous rockets!

Recycling & Our Earth

Turn old stuff into new treasures and help our planet stay healthy!

The invisible force that keeps your feet on the ground and planets in orbit.

Our nearest star: the giant ball of fire that lights up our days!

The World of Plants

Meet the green living things that feed our whole planet!

See how living things are born, grow up, and start the cycle again!

Blast off through the story of rockets, astronauts, and life among the stars!

Dive into Earth's oceans, the vast blue waters that cover most of our planet.

Stars & Constellations

Learn how to read the night sky using stars and the shapes they make!

Meet Earth's closest neighbor: its phases, its craters, and how it pulls the tides!

Rocks & Minerals

Scratch, sparkle, and sort the amazing minerals that build our planet!

Tour the Solar System

Blast off on a tour of the Sun and its eight amazing planets!

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