Across
- 3. This planet is closest to the sun and the smallest in our solar system
- 7. This planet is seventh from the sun and is made mostly of ice.
- 9. The area outside of Earth's atmosphere (the sky)
- 10. Beings known as "extraterrestrials" or, "E.T."
- 12. This is the largest planet in our solar system and is fifth from the sun. It is mostly made of gas.
- 13. A satellite planet, it circles the Earth. (Other larger planets have satellite planets, too!)
Down
- 1. This is the only known planet that has life including humans, plants, and animals
- 2. Eighth planet from the sun, it is made of ice and is named after the Roman god of water.
- 4. A group of stars that appear close together in the sky and can be made into images. They often have legends (myths) about how they were formed.
- 5. Known as "the Red Planet," this planet is fourth from the sun known as a desert planet
- 6. This is the second planet from the sun and has a hot, volcanic atmosphere.
- 8. A large ball of burning gas in the sky
- 11. This is the sixth planet from the sun and has large rings.