How Things Work

An oven that stays cool

Could you bake a potato in an oven that doesn’t get hot? Yes, you could, if it’s a microwave oven. In minutes, the potato gets steaming hot, but the oven stays cool! And the glass or china dishes you…

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About Animals

Curiosities

> Platypus The platypus, or duckbill, is a mammal, but it seems to be part bird, too. It has a body like a beaver and a bill and feet like a duck. A mother platypus gives milk, as all mammal mothers…

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How Things Work

Round and flat

Special pictures called holograms make things look real. When light shines through the film, you see the pictured thing from all sides. Your dog was chasing a big red ball when the picture was…

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