How Things Work

Frozen food

Fresh foods keep their color and flavor for only a short time. You have to eat them soon after they are bought. Is your piece of apple pie homemade, or did it come frozen? Sometimes it’s hard to…

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About Animals

Hiding from winter

Amphibians are cold-blooded. Their bodies are just about as warm or as cold as the air or water around them. So when winter comes, and the days get colder, an am­phibian’s body gets colder, too. The…

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Hear All About It

What is sound?

> Sound comes from just about everywhere— from friends talking, radios > playing, jet planes roaring overhead. Even your breathing makes a tiny > sound. > > None of these sounds seem very much…

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