Earth's systems

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Across
  1. 2. A solid inorganic material found in nature
  2. 3. The study of earthquakes and related phenomena.
  3. 7. the lower part of Earth's mantle, below the asthenosphere
  4. 8. the movement caused within a fluid when the hotter less dense material rises, and colder, denser material to sink.
  5. 12. Move side to side through only solids. Travel slower than p waves.
  6. 14. boundary: boundary where tectonic plates collide.
  7. 15. Form at convergent boundaries where one plate subducts under another, and magma underground is pushed upward
  8. 17. the outer part of the earth. includes the crust and upper mantle
  9. 20. plates: Large pieces of lithosphere that the oceans and continents rested on
  10. 22. water: water held underground in the soil in deep reservors
  11. 23. boundary: boundary where tectonic plates divide.
  12. 25. Group of animals that occupy a certain area
  13. 26. below the lithosphere. hotter and more fluid part of the mantle
  14. 27. compress or squeeze through solids or liquids. Travel faster than s waves.
  15. 28. No longer in existence
  16. 29. forms under pre-existing rock and fossils. Appears layered
Down
  1. 1. the innermost layer of Earth. divided into two parts, liquid and outer and solid inner. made of iron and nickel
  2. 2. Forms under extreme heat and pressure. Appears twisted.
  3. 4. Forms when molten rock crystallizes and solidifies. Appears glassy
  4. 5. The supercontinent that existed before continents spreaded
  5. 6. the solid, outermost layer of the Earth, lying above the mantle
  6. 9. the layer that lies between earth's crust and core. The majority of Earth's mass is in the layer
  7. 10. fuels: Petroleum,natural gas,coal.Made from remains of plants and animals
  8. 11. Floor Spreading: Occurs when divergent plates separate. Convection current cause less dense material to rise. creates new ocean floor
  9. 13. The study of earth
  10. 16. 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
  11. 18. When a sudden release of energy in the lithosphere creates seismic waves
  12. 19. cycle: When heat,pressure,cooling,melting,and weathering cause rocks to change from one type to another over time.
  13. 21. A tool that measures/ records details of earthquakes
  14. 24. boundary: Boundary where tectonic plates slide past each other