Plate Tetconics

2. Dense ball of solid metal
6. Scientific Theory that describes the motion of the Lithosphere
7. Found in continental crust
9. The flow that transfers heat within a fluid
11. The process that takes place at the convergent boundary
13. The transfer of heat within a material between materials that are touching
15. All life exists on this layer on Earth
16. When two plates slide past each other
17. Heat transferred by the movement of currents within a fluid
18. This supercontinent, known as Pangaea, existed before the ______.

1. When two plates move away from each other
3. Scientists say that the movement of this causes the Earth's magnetic field
4. This layer's thickness is 2,867 km
5. Located under the Lithosphere
8. A well-substantiated explanation of some aspects of the world
9. When two plates collide, one plate can slide under another into the subduction zone, or slide above another plate to form mountains
10. The crust and the uppermost mantle
12. Found in oceanic crust
14. This is mass divided by volume