rock cycle vocab

3. Plates – Large rigid pieces of the Earth's lithosphere that move and interact with each other along plate boundaries.
4. – Rock formed when lava or magma cools and hardens.
6. – Form after weathering and erosion when sediments compact and cement.
10. – Instruments used to measure and record seismic waves.
11. – A group of the same species living in the same area.
14. – Fractures or zones of weakness in the Earth's crust.
15. Cycles – Hot materials rise, cooler materials sink. It drives plate tectonics.
16. – An opening in the Earth's crust through which molten rock is pushed out and creates new rock.
17. Extinction Events – Extinction events that occur over a longer time period.
19. – Formed as a result of high temperature and pressure deep within Earth, changing a rock that already existed.
20. – Includes the crust and upper part of the mantle, and is divided into tectonic plates.
21. Boundary – Tectonic plates move toward each other, usually forming mountains and volcanoes.

1. – Name of the ancient supercontinent when it was all one landmass.
2. – Located between the mantle and the outer core.
5. – The semi-fluid layer of the mantle where convection currents happen.
7. Extinction Events – Sudden events that lead to a mass extinction.
8. Floor Spreading – New oceanic crust is formed as tectonic plates pull apart and magma rises.
9. – Deep, elongated depressions in the ocean, often associated with subduction zones.
12. Boundary – Where tectonic plates slide past each other; causes earthquakes.
13. – Formed at plate boundaries, usually when plates collide.
18. Boundary – Tectonic plates move away from each other, usually forming new crust and rift valleys.