Earths Systems

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Across
  1. 3. boundary: Boundary that divides
  2. 5. The study of earthquakes and related phenomena
  3. 9. below the lithosphere, hotter and more fluid part of mantle.
  4. 11. Fuel: petroleum, natural gas, coal. made from remains of plants and animals
  5. 14. floor spreading: convection currents cause less dense material to rise. creates new ocean floor.
  6. 15. the solid, outermost layer of the earth, lying above the mantle.
  7. 17. Cycle: When heat, pressure, cooling , melting, and weathering cause rocks to change from one type to the other.
  8. 18. no longer in existence
  9. 20. group of animals that occupy a certain area
  10. 22. the study of earth
  11. 23. the supercontinent that existed before continents seperated.
  12. 25. When a sudden realease of energy in the lithosphere creates seismic waves
  13. 26. the lower parts of the earths mantle, below the asthenosphere.
  14. 29. Water: water held underground in soils deep reservoirs
  15. 30. The layer that lies between earths crust and core. the majority of the earths mass is in this layer.
Down
  1. 1. Forms under extreme heat and pressure. appears twisted.
  2. 2. The innermost layer of earth, divided into 2 parts, liquid outer, and solid inner. made of iron and nickel.
  3. 4. A tool that measures/ records details of earthquakes
  4. 6. Forms when molten rock crystallizes and solidifies, appears glassy.
  5. 7. The outer part of the earth, includes crust and upper mantle.
  6. 8. plates: large peices of lithosphere that the ocean and continents rest on.
  7. 10. a solid inorganic material found in nature
  8. 12. Move side to side only through ONLY solids. travel slower than p
  9. 13. when magma flows through a crack in the middle of a tetonic plate.
  10. 16. Forms from pre-existing rock and fossils. appears layered
  11. 19. where one plate subducts under another and magma underground is oushed upward.
  12. 21. boundary: boundary that slides past eachother.
  13. 24. The movement cause with a fluid when the hotter, less dense material rises, and colder dense material sinks.
  14. 25. still in existence, surviving species
  15. 27. Compress or squeeze through solids & liquids. travel faster than s
  16. 28. boundary: boundary that collides