How Are Stars Formed?
A star like our sun is born inside a huge cloud of gas and dust. A globe of space matter grows as it sweeps…
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Energy
Why Do Stars Shine Only at Night?
Why Do Stars Shine Only at Night? Though stars seem to disappear when daylight comes, there are really stars in the sky all day, and their l
What Makes Thunder?
What Makes Thunder? A bolt of lightning is a big electric spark. During a thunderstorm, electrical charges are built up in the clouds. When
Why Does the Camel Have a Hump?
The camel’s best known feature is the hump on its back. The camel’s hump is mostly fat that provides nourishment when food is hard to find.
Why Do Fish Swim in Schools or Shoals?
Why Do Fish Swim in Schools or Shoals? Some fish swim alone; others stay in groups known as “schools” or “shoals”. A school of fish