Across
- 2. by gravitational pull of the sun and moon.
- 4. house effect/atmosphere heats up
- 7. planet in solar system
- 12. Armstrong/first person to land on moon
- 13. planet
Down
- 1. of the sun is made up of
- 3. from full moon to new moon
- 5. planet to earth and second closest to sun
- 6. between the new moon and the full moon
- 8. person to use telescope to study moon
- 9. of thick rings
- 10. energy/energy released by the sun
- 11. layer/absorbs most of the ultraviolet radiation from the sun