Earths system

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Across
  1. 1. no longer in existence
  2. 4. the outer part of earth. includes the crust and upper mantle
  3. 5. when magma flows through a crack in the middle of a tectonic plate and not a plate boundary.
  4. 6. move side to side through only solids travel slower than p
  5. 9. forms under extreme heat and pressure. appears twisted
  6. 11. the innermost layer of earth, divided into 2 parts, liquid outerand solid inner, made of iron and nickel
  7. 13. compress or squeeze through solids and liquids travel faster than s
  8. 16. the solid, outermost layer of earth, lying above the mantle
  9. 17. forms when molten rocks crystallize and solidifies. appears glassy
  10. 19. group of animals that occupy a certain area
  11. 23. is the study of earth
  12. 26. forms from pre-existing rock and fossils. appears layered
  13. 27. boundary where tectonic plates slide past each other
  14. 28. the layer that lies between earths crust and core, the majority of earths mass is in this layer
  15. 30. when a sudden release of energy in the lithosphere creates seismic waves
  16. 31. when heat, pressure, is cooling, melting, and weathering cause rocks to change from one type to another overtime
Down
  1. 2. large pieces of lithosphere that the ocean and contients rest on
  2. 3. the lower part of earths mantle, below the asthenosphere
  3. 7. still in existence, surviving species
  4. 8. boundary where tectonic plates collide
  5. 10. the movement caused within a fluid when the hotter, less dense material rises and colder, denser material to sink
  6. 12. below the lithosphere, hotter and more fluid part of mantle
  7. 14. occurs when divergent plates seperate, convection currents cause less dense material to rise, creates new ocean floor
  8. 15. the study of earthquakes and related phenomena
  9. 18. boundary where tectonic plates divide
  10. 20. the subcontinent that existed before continents separated
  11. 21. a tool that measures/records details of earthquakes
  12. 22. form at convergent boundaries where one plate subducts under another, and magma underground is pushed upward
  13. 24. a solid inorganic material found in nature
  14. 25. water held underground in the soil in deep reserviors
  15. 29. fuel petroleum, natural gas, coal. made from remains of plants & animals