wunder betaThe Human Body Classes for Kids
24 free the human body 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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The Body's Organ Systems
Meet the six teams of organs inside you and discover how each one keeps your body moving, breathing, fueled, and in control.
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Diet, Exercise, and Your Body
Discover how the right foods fuel you and how moving your body keeps your heart, muscles, and bones strong.
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Body Structures for Survival
Discover how bones, muscles, teeth, senses, and organs team up to keep your body alive and thriving.
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Skeletons and Muscles
The bones that hold you up and shield your insides, the joints that let you bend, and the muscles that pull in pairs to move you.
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Senses, Brain, and Responses
How your five senses gather clues about the world, send them racing along nerves to your brain, and how your brain decides what to do next.
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Animal Nutrition and Classification
Explore how animals get their food through food chains, and how scientists classify animals into groups.
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Choosing the Right Math Tool
Good math helpers have a whole toolbox — counters, a number line, fingers, drawings, and their own brain! Learn to pick the best tool for each kind of problem.
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Insect Anatomy Up Close
Zoom in on the amazing bodies of insects, from their three body parts to their compound eyes, six legs, and wings.
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Converting Fractions and Decimals
Turn a fraction into a decimal by dividing, change a decimal back into a fraction using place value, and learn the handy ones by heart.
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Sorting Data into Categories
Organize objects into two or three categories, count each group, and answer questions like which group has more and how many there are in all.
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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.
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Addition and Subtraction Facts to 20
Know your addition and subtraction facts to 20 by heart, then stretch them further: if 6 + 4 = 10, then 60 + 40 = 100.
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Nocturnal Animals
Find out which animals sleep by day and come alive at night, and see the special big eyes, large ears, and sensitive whiskers that help them hunt in the dark.
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Addition and Subtraction Facts to 20
Know your addition and subtraction facts to 20 by heart, then stretch them further: if 6 + 4 = 10, then 60 + 40 = 100.
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Giraffes!
Stretch up to meet the tallest animal on Earth and discover the surprising science of its neck, its uphill-pumping heart, its purple tongue, and its secret hum.
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Elephants!
Meet the biggest animals that walk the Earth, from their amazing 40,000-muscle trunks to their wise grandma leaders and rumbles you feel in your feet.
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Axolotls!
Meet the axolotl, the smiling salamander that stays a baby forever and can regrow its own legs, tail, and even parts of its heart!
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Bears!
Meet all eight kinds of bears, from the tiny sun bear to the giant polar bear, and find out how they really live, sleep, and eat.
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What's Inside a Computer?
Take a peek inside a computer to meet its brain and its memory, learn its secret language of 1s and 0s, see how a tap turns into a picture, and discover that computers are hiding all around you!
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Octopuses!
Meet the octopus: eight arms that think for themselves, instant color changes, jaw-dropping escapes, three hearts of blue blood, and clever tool use.
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Germs & Immunity
Discover your body's amazing germ-fighting army: the immune system!
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The Human Body
Bones, muscles, heart, lungs and brain — how your body works.
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Inside Your Brain
Peek inside the incredible control center that runs your whole body!
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How Your Heart Works
Meet the mighty muscle that beats about 100,000 times a day!
All The Human Body courses (topic hub)
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