Plate Tectonics

3. / a section of a lithosphere that slowly moves over the asthenosphere carrying pieces of continental and oceanic crust
5. Transfer / the movement of energy from a warmer object to a cooler object
7. / a plate boundary where two plates move away from each other
10. waves / A vibration that travels through Earth carrying the energy released during an earthquake.
14. / transfer of heat by movements of a fluid
15. / a plate boundary where two plates move toward each other
18. / soft layer of the mantle which the lithosphere floats on.
19. / a system that determines the distance of an object underwater by recording echoes of soundwaves
20. / a plate boundary where two plates move past each other in opposite directions

1. / the layer of rock that forms Earth's outer surface
2. / the layer of hot, solid material between Earth's crust and core.
4. / the process by which oceanic crust sinks beneath a deep ocean trench and back into mantle
6. core / solid part of the core
8. / direct transfer of energy through empty space through electromagnetic waves
9. / name of the single landmass that broke apart 225 million years ago
11. Drift / hypothesis that the continents slowly move across Earth's surface
12. / a rigid layer made up of the uppermost part of the mantle and the crust
13. Tectonics / the theory that pieces of Earth's lithosphere are in constant motion driven by convection currents in the mantle
16. / Amount of force pushing on a surface or area.
17. core / this part is the molten part of the Earth's core.