Across
- 1. an extremely hot, dense mass of gases
- 4. what humans need to breathe and function
- 6. the 3rd planet from the sun
- 10. the dwarf planet that used to be called a planet
- 11. a small mass of dust and ice that orbits the sun
- 12. 58 million km from the sun
- 13. the first four planets in our solar system (the terrestrial planets)
- 15. rocky objects that orbit the sun
- 16. the outer planet with the most moons in our solar system
- 18. Protects the head from harmful radiation, and flying debris
- 19. A thin layer of gold
Down
- 2. the first man on earths moon
- 3. the gas planets in our solar system
- 5. force of attraction between two or more objects
- 7. protects earth from radiation
- 8. the moon that orbits earth
- 9. a mass that orbits the planet that is holding it in its gravitational pull
- 12. rocky objects moving in space between the inner planets and the outer planets
- 14. what a meteor becomes when it impacts earths surface
- 17. Protects the astronauts fingers from radiation and flying debris