Science Vocab

2. the semi-fluid layer of the mantle where convection currents happen
6. new oceanic crust is formed as a tectonic plates pull apart and magma rises
7. Fractures or zone of weakness in the earths crust
9. A group of the same species living in the same area
11. Instruments used to measure and record seismic waves
12. where tectonic plates slide past each other.Causes earthquakes
14. Forms after weathering and erosion when sediments compact and cement
15. Name of the ancient supercontinet when it was all one landmass
16. Tectonic plates move away from each other usually forms new crust
17. Hot material raises cooler materials sink. It drives plate tectonics
19. Includes the crust and upper part of the mantle and is divided into tectonics.
20. Formed at plates boundaries usually when plates colide

1. Extinction events that occur over a longer time period
3. Formed as a result of high-temperature and pressure deep within the earth
4. Located between the mantle and the outer core
5. An opening in the earths crust through which molten rock is pushed out and creates new rock
8. deep elongated depressions in the oceans often associated with subduction zones
10. Sudden events that led to a mass extinction
13. Large ridged pieces of the earths lithoshphere that moves and interact with each other along plate boundaries
18. Rock forms when lava or magma cools and hardens