Across
- 4. the theory that the continents were once joined, then slowly drifted apart
- 7. cracks in the Earth's crust
- 9. the term scientists use to describe the activities of continental drift and magma flow
Down
- 1. when pieces of the Earth's crust come together slowly as the oceanic plate slides under the continental plate at a shallow angle
- 2. when the heavier oceanic plate dives beneath the lighter continental plate
- 3. oceanic plates being pushed apart
- 5. when the folded land cannot be bent any further
- 6. bends in layers of rock
- 8. molten rock that is located below the Earth's surface