Across
- 5. a tectonic boundary where two plates are moving toward each other
- 9. a thing that breaks the crust of the earth
- 10. when two plates move away from each other
Down
- 1. gigantic pieces of earth's crust and the upper mantle
- 2. something that puts cracks in the earth and creates earthquakes
- 3. a real or imaginary line dividing two things
- 4. when two tectonic plates move past each other
- 6. made when one tectonic plates slides under on another
- 7. made when two continental plates collide and crumble and fold
- 8. the only planet that holds life forms.