Rocks with Schrock

2. States the oldest layers of rock are at the bottom and youngest are at the top
3. When plates move away from each other
4. the flow of air from the core of the Earth
5. A chain of mountains underwater caused by divergent plate movement
8. Faults caused by tectonic plates breaking apart
9. The largest layer of the Earth
11. When plates move away from each other
14. A semi-rigid part of the mantle that flows like syrup
16. Layer made of liquid iron and nickel
17. A fracture in the Earth's crust caused by movement or displacement
18. Oceanic crust forms as magma rises and cools
19. The process of plates merging and breaking apart over millions of years
20. Theory that the lithosphere is broken into several large plates

1. A gap in the rock where older layers meet younger layers
6. Layer made of solid iron and nickel
7. When plates slide across each other
10. An area of volcanic activity that develops above where magma rises in a plume from the mantle
12. The theory of continents moving over time
13. Forms from cementation of sediments
15. rock that forms from magma cooling