should go. Click! The minute you turn on a lamp or a radio, something happens—a light bulb glows or sounds come out. But electricity doesn’t jump into the lamp or the radio. It flows through…
Dehydration is a condition that results when the water content of the body drops excessively. It is sometimes accompanied by a loss of certain body minerals, such as sodium and potassium. …
When you have a favorite toy that breaks, you fix it and make it almost as good as new. Buildings and castles and cities don’t break. But sometimes they wear out and need fixing, too. When we make…
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