
Neon is a gas. It is in the air. You cannot see it. You cannot smell it. But you can trap it in a tube. If you run electricity through the tube, the neon glows.
Photo Credit: Stefano Politi Markovina/Alamy Stock Photos
The Sun gives off both light and heat. We can … read more
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Jeanette Epps is an astronaut. She studies things in space. … read more
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