Across
- 3. consists of all crustt as well as the upper rigid part of the mantle
- 5. the landmass that existed when all continents were joined together
- 9. occurrs when 2 tectonic plates collide and one plate moves under the other and other sinks under the mantle
- 11. boundary between 2 plates moving away from each other
- 12. theory explaining how tectonic plates move and change shape
- 13. geman scientist that developed the theory of continental drift
Down
- 1. boundary formed by collision of 2 plates
- 2. hypothisis that the continents once formed a single land mass broke up and drifted away
- 4. boundary between 2 plates that are scraping past each other
- 6. the broken up pieces of the lithosphere
- 7. prosess of new oceanic crust forming as magma rises toward the surfuse an solidifies
- 8. places where tectonic plates meet
- 10. ring of volcanos around the pacific plate