Across
- 5. Center of planet Earth
- 6. underwater mountain ranges that form at the boundary of two tectonic plates
- 8. A large, slow moving rock that makes up earths outer crust
- 9. when to plates move towards each other and collide
- 10. A sudden violent shaking of the ground
Down
- 1. when to plates are separating
- 2. The layer of gases around Earth
- 3. All plants, animals, and people, both living and non-living, on Earth
- 4. When a big mountain where lava erupts out of it
- 7. The outermost layer of the earth