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Life & body
Germs, breathing, senses, plants, the body.
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ages 8–11
Why doesn't a whole town get sick at once?
germs
spread
health
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ages 8–11
Why do you breathe faster when you run?
breathing
body
oxygen
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ages 8–11
Why does your heart beat in two thumps?
heart
blood
body
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ages 8–11
Why can't you tickle yourself?
brain
senses
neurons
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ages 8–11
Why do you get dizzy after spinning?
ears
balance
brain
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