Across
- 4. the strongest type of convection currents
- 5. this boundary causes plates to move apart
- 8. plates move towards eachother
- 9. areas where magma rises to the surface (not along a boundary)
- 10. thinnest of the Earth's layers
- 12. plates move against eachother on this tectonic boundary
- 14. one tectonic plate is forced into the mantle through convergence
- 15. layer of the middle Earth
- 16. result of the movement of polar and Hadley cells
- 17. the ability of a surface to trap heat
Down
- 1. this causes tectonic plates to move
- 2. the weakest type of convection currents
- 3. caused by the tilt of the earth on its axis
- 6. this area has the most volcanic and seismic activity
- 7. layer of the atmosphere in which most wind and weather events occur, like convection currents
- 11. this tends to happen at the end of each geologic period
- 13. the area where deserts form (behind mountain ranges)