Across
- 5. happens when the sun is not visible
- 10. small rocky bodies that orbit the sun
- 11. an artifical body that orbits something
- 13. explanation for creation of the universe
- 16. to increase
- 17. part of a comet or astroid
- 18. all the planetsrevolve around the Earth
- 19. when day and night are equal lengths
- 20. the smallest planet
Down
- 1. fat and round but not completely full
- 2. telescope that sees around the universe
- 3. happens during a full moon
- 4. cosmic balls of rock and ice
- 6. the study of space
- 7. oreo thin moon phase
- 8. the biggest planet
- 9. when day or night is way longer than other
- 12. explanation of the temperature for months
- 14. all the planets revolve around the sun
- 15. to decrease