How Does a Butterfly Fly?
Do you know how does a butterfly fly? Keep reading to find out the answer. A butterfly’s wings act as both “propellers” and “lifters.” The...
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Where Does Dew Come from?
Dew is moisture from the air that collects in drops on blades of grass. During the day, moisture from the earth evaporates into the warm air. But at night, the earth...
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How Do Astronauts Bathe in Space?
How Do Astronauts Bathe in Space? Astronauts in space bathe in a very complicated manner. The space station has a full body shower unit. When astronauts want to take a...
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What Is Air Made of?
Air is the mixture of gases in our atmosphere. It is mainly nitrogen (seventy eight percent) and oxygen (twenty one percent). The rest is chiefly argon. There are also...
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Does a Lost Balloon Rise Forever?
No, a lost balloon will not rise forever. A helium-filled balloon floats up and away if you let go of the string. But the balloon won’t keep on rising forever. The...
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