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The Immune System
Watch how the immune system fends off germs and learn what to do to boost its power.
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Heart & Circulatory System
The heart is one strong muscle. Take a look at how it pumps blood around the body.
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The Digestive System
We start digesting food even before we eat it! Learn more facts about the digestive system.
Explore the Body
Bones & Muscles
Healthy Weight
Kids come in all shapes and sizes. But what makes a healthy weight? Watch this movie and find out.
Body Q&A
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The four major types of germs are bacteria, viruses, fungi, and protozoa.
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When mucus (or snot) in your nose, dirt, and other debris dry out and clump together, it’s called a booger.
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The body makes pee as a way to get rid of waste and extra water that it doesn't need.