Across
- 2. the wearing away and breaking down of rocks
- 4. the magma that flows from an opening onto the surface of the earth
- 6. the center of the earth, which is very hot and under extreme pressure
- 7. the loose material on the surface of the earth in which plants might grow
- 8. the event that caused the entire crust of the earth to change
- 9. hot melted rock under the surface of the earth
- 11. the movement of sediment from one place to another
Down
- 1. refers to particles that were once part of a living thing
- 3. the middle layer of the earth, which makes up most of the earth's mass
- 5. a scientist who studies the nonliving parts of the earth
- 7. small bits of weathered rock
- 10. the thin outer layer of the earth, which seems to be made of many pieces