Plate Tectonics

3. Magma that has reached the surface
6. Theory that the lithosphere is divided into tectonic plates that float around on the asthenosphere
7. What mountain range formed from the collision of the India and Eurasia plate?
9. What mountain formed along the coast of South Africa as a result of plate subduction after a collision
10. Heated, less dense air or liquid rises and cooler, more dense air or liquid sinks
12. What islands were formed from the collision of two oceanic plates?
13. Who proposed the theory of continental drift?
14. Theory that continents were once one big land mass and over time they drifted apart
18. What type of plate boundary slides past the other to create fault lines?
19. Cool, rigid outermost layer of the earth. Consists of the upper most part of the mantle and the crust

1. Hot, molten rock from deep within the earth
2. Materialized remains of organisms that show how long an animal lived and the structure of their body
4. When magma oozes from mid ocean ridges, creating new crust that gradually moves away from the ridge and makes one ocean bigger and the other smaller
5. What islands were formed over a hotspot?
8. When two plates collide and the more dense one sinks under the earths surface
11. Who proposed the idea of plate tectonics?
12. Solid layer with plasticity in the upper mantle just below the lithosphere
15. What type of plate boundary pulls away from the other to form rift valleys?
16. What type of plate boundary collides with the other to create mountains?
17. Area in the mantle from which magma rises from a narrow plume to form volcanic mountains