Across
- 2. the sideways planet that is made of chemicals
- 5. center of the solar system
- 7. has a giant canyon longer than the distance across the USA
- 9. a large space rock
- 10. narrow rings circle around this planet
- 12. the air around a planet
- 15. the planet closest to the sun
- 16. a ball of ice
- 17. a path in the solar system
Down
- 1. orange and white clouds travel around this planet
- 3. the force that attracts all objects to another
- 4. nearly as large as earth
- 6. the blue planet
- 8. bounces off the moon and makes the moon look white in color
- 9. scientists who study objects in space
- 11. known as the lost planet because it is very far away
- 13. the planet we live on
- 14. has a crater called Copernicus