Earth Science 1

6. The process where the ocean plate collides with the continental plate and the ocean plate then sinks below the continental plate.
8. A place where extremely hot molten rock erupts from the earth’s mantle.
9. Molten rock that has erupted onto the earth’s surface.
12. Currents in the mantle caused but the hot molten rock.
13. Where plates are moving apart from each other
16. The separating of continents by drifting across the oceans is called _______.
18. Large pieces of the earth crust is broken into large pieces that move on the geosphere.
19. Molten rock below the earth’s surface.
20. The point on the earth surface directly above the focus of the earthquake.

1. The name given to the place where the ocean plate sinks below the continental plate.
2. The first land mass Pangaea, split in to two. The name given to the southern super continent containing Australia was called _________ .
3. the rapid movement of the ground in a wave motion due to movement of tectonic plates
4. Where plates are colliding with each other
5. The place below ground where the earthquake starts.
7. The process where the ocean ridge separates and new crust is formed.
10. A deep trench in the ocean floor that it much deeper than the rest of the ocean floor.
11. patterns of alternating magnetism trapped in rocks on each side of plate boundaries.
14. A very violent eruption of cloud of ash, rock and gas that erupts from a volcano like an avalanche.
15. Where plates are sliding parallel to each other but in opposite directions.
17. A huge wave in the ocean caused by an earthquake occurring on the seafloor.