Science Choiceboard

1. Where tectonic plates slide pass each other
3. Large, rigid pieces of the earths lithosphere that move and interact with each other along the plate boundaries
5. Formed as a result of high temperature and pressure deep within earth changing a rock that already existed
9. Rock formed when lava or magma cools and hardens
10. located between the mantle and the outer core
11. tectonic plates move away from each other
12. Fractures or zones of weakness in the earths crust
13. new oceanic crustis formed as tectonic plates pull apart and magma rises
16. An opening in earths crust through when molten rock is pushed out and creates a new rock
17. Hot material rises, cooler material sinks. It dives plate tectonics
18. Name of the ancient supercontinent when it was all one land mass
19. Deep, elongated depessions in the ocean
20. Instruments used to measure and record seismic waves

2. Sudden events that led to a mass extinction
4. Includes the crust and upper part of the mantle, and is divided into tectonic plates
6. formed by plate countries usually when plates collide
7. Tectonic plates that move toward each other
8. Extinction events that occur over a long lime period
14. The semi-fluid layer of the mantle where the convection currents happen
15. A group of the same species living in the same area
21. Forms after weathering and erosion when sediments compact and cement