Earth Science Unit 1

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Across
  1. 2. Outermost layer of Earth
  2. 5. Tectonic plates collide
  3. 8. Tectonic plates slide past eachother
  4. 9. mass/volume
  5. 10. Earthquakes and volcanoes occur most at tectonic plate _____
  6. 13. supercontinent that existed around 300 million years ago
  7. 15. the circular motion of magma in the mantle from varying temperatures and densities
  8. 17. Earth layer made of solid metal
  9. 18. Tectonic plates drift apart
  10. 19. amount of space taken up
Down
  1. 1. amount of particles
  2. 3. Name for circular formation of earthquakes and volcanoes around the Pacific Plate
  3. 4. the substance with the lower density will
  4. 6. Type of tectonic plate/crust that is less dense and holds land
  5. 7. protects the earth from solar radiation, and is formed from the outer core
  6. 11. Type of tectonic plate/crust that is more dense and holds oceans
  7. 12. the substance with the higher density will
  8. 14. middle layer of earth made of magma
  9. 16. Earth layer made of moving liquid metal