Across
- 2. two plates crash into each other
- 5. tectonic plates that divide apart
- 6. causes plates to move
- 7. causes earthquakes
- 9. pieces of the crust that move around
Down
- 1. plates collide and the denser one goes underneath
- 2. tectonic plates collide and create mountains
- 3. hardened magma
- 4. houses convection currents
- 8. occur at divergent boundaries