Earths system

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Across
  1. 3. boundary: Boundary where tectonic plates collide.
  2. 5. the movement caused within a fluid when the hotter less dense material rises, and colder, denser material to sink.
  3. 7. the lower part of earths mantle, below the athstenosphere
  4. 9. The study of earth
  5. 10. water: water held underground in the soil in deep reservors
  6. 16. Forms when molten rock crystalizes and solidifies. Appears glassy
  7. 20. the intermost layer of earth, divided into 2 parts liquid outer and solid inner Made of iron and nickel.
  8. 21. form at convergent boundaries where one plate subducts under another, and magma underground is pushed upwards.
  9. 23. A tool that measures/ records details of earthquakes
  10. 24. when a sudden release of energy in the listhosphere creates siesmic waves.
  11. 25. spot: when magma flows through a crack in the middle of a tectonic plate and not at a plate boundary . Hawaiian islands were formed this way.
  12. 26. the supercontinent that existed that existed before the continents seperated
  13. 27. the layer that lies between earths crust and core, the majority of earths mass is in this layer.
  14. 28. compress or squeeze through solids or liquids. Travel faster than s waves.
  15. 30. boundary: boundary where tectonic plates slide past each other.
Down
  1. 1. plates: large pieces of lithosphere that the ocean and continents rest on.
  2. 2. forms under pre-existing rock and fossils. Appears layered
  3. 4. cycle: When heat,pressure,cooling,melting,and weathering cause rocks to change from one type to another over time.
  4. 6. Forms under extreme heat and pressure. Appears twisted.
  5. 8. floor spreading: occurs when divergent plates seperate. convection currents cause less dense material to rise. creates new ocean floor.
  6. 11. No longer in existence
  7. 12. Below the lithosphere. Hotter and more fluid part of matel.
  8. 13. fuels: Petroleum,natural gas,coal.Made from remains of plants and animals
  9. 14. A solid inorganic material found in nature
  10. 15. The study of earthquakes and rekated phenomena.
  11. 17. the solid outermost layer of the earth, lying above the mantle.
  12. 18. the outer part of the earth. Includes the crust and upper mantel
  13. 19. boundery: boundary where tectonic plates divide.
  14. 22. Group of animals that occupy a certain area
  15. 29. Move side to side through only solids. Travel slower than p waves.