Across
- 3. created by the collision of a small planet and the early Earth
- 9. held the first dust particles together, like the sand in space experiment
- 11. the distance from the sun where water can exist in all forms
Down
- 1. found in the early Earth rocks, melts the ancient Earth
- 2. is a pathway for the gases inside the Earth to get outside the Earth
- 4. created by the movement of the metal outer core
- 5. the attractive force holding us to the Earth
- 6. cold hard outer layer of Earth
- 7. the amount of material in a space
- 8. ability to sustain life
- 10. movement of the oceans due to the moon; moves nutrients unto land