____ are made of water drops or ice crystals floating in the sky.They look like fluffy cotton layers in the sky. ____ are huge spheres of hot gas. The groups are called a constellation. ____ is a large object that travels around the Earth that gets its light from the Sun. ____ is water that falls to the Earth. ____ is the ball of glowing gases that lights the world. ____ is an arc of different colors that occurs after it is raining. The colors are red, orange, yellow, green, blue, indigo and violet.

Science Unit 4 : Sky objects

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