MediumScience
"I grow full then thin then disappear then return again. I light the night but I make no light of my own. I pull the ocean but I cannot touch it. What am I?"
Answer
The Moon
Explanation
The moon waxes to a full circle then wanes to nothing across its cycle before returning. It reflects sunlight rather than generating its own. Its gravitational pull creates the tides despite being nearly 240,000 miles away.
This is a medium riddle in the Science category — Riddles about physics, space, biology and the laws of the universe.
Tags:naturespaceclassic
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