Restless Earth Vocab

Edit Answers
123456789101112131415161718
Across
  1. 5. instruments used to measure and record seismic waves
  2. 12. The semi-fluid layer of the mantle where convection currents happen
  3. 14. formed when lava or magma cools and hardens
  4. 15. tectonic plates move towards each other, usually forms mountain and volcanoes
  5. 16. located between the mantle and the outer core
  6. 17. forms after weathering and erosion when sediments compact and cement
  7. 18. where tectonic plates SLIDE past each other. Causes earthquakes
Down
  1. 1. includes the crust and upper part of the mantle, and is divided into tectonic plates
  2. 2. hot materials rises, cooler materials sink. It drives plate tectonics
  3. 3. Large, rigid pieces of the Earth's lithosphere that move and interact with each other along plate boundaries
  4. 4. extinction events that occur over a longer time period
  5. 6. sudden events that led to mass extinction
  6. 7. a group of the same species living in the same area
  7. 8. tectonic plates move away from each other, usually forms new crust and rift valleys
  8. 9. new oceanic crust is formed as tectonic plates pull apart and magma rises
  9. 10. formed as a result of high temperature and pressure deep within earth changing a rock that already existed
  10. 11. Name of the ancient supercontinent when it was all one landmass
  11. 13. formed a plate boundaries usually when plates collide