Across
- 6. bends downwards
- 7. boundary plates slide past each other
- 8. a super continent
- 9. helped scientist explore the ocean floor
- 10. boundary plates collide
- 13. boundary plates divide
- 15. pieces of earth diverge on land
- 18. the crust is broken into pieces
- 19. tectonics states that earth's plates are in slow constant motion
- 20. ocean floor sinks beneath a deep ocean trench
Down
- 1. current the flow that transfers heat within a fluid
- 2. drift the continents are in slow constant motion
- 3. German scientist
- 4. where seafloor spreading begins
- 5. adds new material to the ocean floor
- 11. a region with particular prevailing weather conditions
- 12. part if the earth between the earth and crust
- 14. is the measure of how much mass is in a given volume
- 16. fetchers a convergent boundary continental,continental
- 17. a break in earths crust