How Things Work

Hard, wet, and invisible

Which is strongest—a stone wall, running water, or blowing wind? A stone wall can stop the wind. But running water can wear down a stone wall. And moving air in the wind can dry up water. So, each…

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About Animals

Animals eat

> Earthworm > > An earthworm makes tunnels in the ground by eating through the dirt. > It feeds on bits of plants and leaves in the dirt. > Alfalfa Butterfly > > A butterfly’s proboscis is like…

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Mathemagic

Counting squares

Ahmose, chief builder for the king of Egypt, had a problem. He was building a new palace for the king and queen. The floor of the queen’s bedroom was to be made of blocks of a special white stone…

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