Sciencesto

5. outermost layer of the Earth
7. place where two plates move together
9. The undersea mountain chain where new ocean floor is produced; a divergent plate boundary
10. a deep valley that forms where two plates move apart
13. a deep valley along the ocean floor through which oceanic crust slowly sinks towards the mantle.
14. rigid layer of Earth's surface made up of the crust and part of the upper mantle
15. sections of the lithosphere

1. the process by which molten material adds new oceanic crust to the ocean floor
2. boundary between two plates that are moving apart
3. cycle of heating,cooling,and sinking
4. area where an oceanic plate goes down into the mantle
6. the name of the single landmass that broke apaart 200 million years ago and gave rise to today's continents
8. plate boundary that forms when two plates slide past each other
11. plastic like layer of the Earth's surface below the lithosphere
12. hypothesis that the continents have moved slowly to their current locations