
The Sun is a bright star. We see it during the day. We know it is important, but why? The Sun gives us light energy and heat energy. Energy from the Sun is called solar energy.
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Long before Europeans came to America, Native Americans lived here. … read more
Look at all the stars! An astronomer is a scientist who studies stars. Most astronomers use their sense of … read more
Humans are mammals. Humans sweat when their bodies get hot. … read more
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