Across
- 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
Down
- 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