Earth's Systems Vocabulary List

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Across
  1. 3. occurs when divergent plates separate; convection currents cause less dense material to rise; creates new ocean floor
  2. 9. survival specialists
  3. 11. layer that lies between the Earth's crust and core.
  4. 12. tectonic plates collide
  5. 15. movement is caused within a liquid when the hotter, less dense material rises and cooler, denser material sinks
  6. 17. made from remains of plants and animals
  7. 23. forms under extreme heat and pressure; appears twisted
  8. 24. no longer existing
  9. 25. core innermost layer of the earth; divided into two parts, liquid outer and solid inner
  10. 26. move side to side through solids only; travel slower than P
  11. 27. outer part of the earth
  12. 29. boundary where tectonic plates divide
  13. 31. compress and squeeze through solids and liquids; travels faster than S
Down
  1. 1. tectonic plates slide past each other
  2. 2. Hawaiian islands creation
  3. 4. sudden release of energy in the lithophere
  4. 5. the solid, outermost layer of the Earth, lies above the mantle
  5. 6. water held in the soil in deep reservoirs
  6. 7. the study of the Earth
  7. 8. large pieces of lithosphere
  8. 10. below the lithosphere
  9. 13. a tool that measures/records details of earthquakes
  10. 14. forms at convergent boundaries; lava and magma
  11. 16. forms from pre-existing rocks and fossils; appears layered
  12. 18. group of animals that occupy an area
  13. 19. when heat, pressure, cooling, melting, and weathering cause rocks to change from one type to another over time
  14. 20. lower part of the Earth's mantle, below the asthenosphere
  15. 21. a solid inorganic material found in nature
  16. 22. the study of earthquakes and related phenomena
  17. 28. supercontinent
  18. 30. forms when molten rock crystallizes and solidifies; appears glassy