Across
- 2. layer of atmosphere that airplanes fly in
- 4. fluffy cloud
- 8. a ball of gas
- 11. low flat cloud
- 12. a planet made of rock and dirt
- 14. large rock of ice and dust
- 15. source of nuclear energy
- 16. a planet that is not in are solar system
- 17. planets made of gas
- 18. something turning
Down
- 1. condensed water vapor
- 3. a prediction
- 4. water sticking to water
- 5. a place that the land is covered in water
- 6. the planet we live on
- 7. a space rock
- 9. energy that contains heat
- 10. a amount that something takes
- 13. giant ball of burning gas
- 15. water sticking to not water