Plates Tectonics

2. area where magma from the mantle continually breaks through the crust.
4. theory that Earth's outer shell is divided into several plates
6. formed at a continental-continental convergent boundary.
8. earths crust located under the ocean.
9. Places where the sea floor is forced under continental plates.
12. The super-continent that formed 300 million years ago and that began to break up 200 million years ago.
14. Places where new sea floor is being created.
17. feature that exists between two tectonic plates that are moving away from each other.
18. The solid outer layer of earth that consists of the crust and the rigid upper part of the mantle.
19. formed when two plates pull apart and land falls downard.

1. Separates the crust and the mantle.
3. tectonic plates or fragments of the lithosphere move toward one another and collide.
5. Places where plates slide past each other are called transform boundaries.
7. earths crust made of land.
10. convection in earth's mantle could push and pull continents , creating new oceanic crust(lead to plate tectonics)
11. Scientist that proposed that all of the continents were once part of a large super-continent (Pangea).
13. theory that explains how continents shift position on Earth's surface.
14. Section of the Earth below the crust.
15. The solid plastic layer of the mantle beneath the lithosphere.
16. a chain of volcanoes formed above a sub ducting plate in an arc shape.