Across
- 1. discovered plate tectonics
- 5. when plates pull together
- 6. the thickest layer of the earth
- 7. the thin layer of the earth
- 8. they move on the anthenosphere
- 9. an idea about plate tectoics
Down
- 2. when plates pull apart
- 3. Before all the continets there was this
- 4. when plates slide past each other
- 5. the continents drifting apart