Year 8 earth science

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Across
  1. 1. The breaking down of rocks and minerals by physical, chemical, or biological processes.
  2. 4. The transfer of heat by the movement of a fluid.
  3. 6. The scale used to measure the magnitude of earthquakes.
  4. 10. A hot spring that intermittently sends up jets of water and steam.
  5. 11. All the waters on the Earth’s surface, such as lakes and seas.
  6. 13. A fracture in the Earth’s crust along which movement has occurred.
  7. 15. Particles of rock and soil that are carried by water, wind, or ice and deposited elsewhere.
  8. 19. The process by which soil and rock are removed from the Earth’s surface by wind or water flow.
  9. 20. An instrument that measures and records details of earthquakes.
  10. 22. A type of rock formed from the cooling and solidification of magma or lava.
  11. 23. The layer of Earth located between the crust and the core.
  12. 24. A large, rigid piece of the Earth’s lithosphere that moves over the asthenosphere.
  13. 26. A naturally occurring, inorganic solid with a definite chemical composition and crystalline structure.
  14. 27. The layer of gases surrounding the Earth.
Down
  1. 2. A large, slow-moving mass of ice on land.
  2. 3. The point on the Earth’s surface directly above the focus of an earthquake.
  3. 5. The outermost layer of the Earth.
  4. 7. The central part of the Earth below the mantle.
  5. 8. The study of the movement and deformation of the Earth’s crust.
  6. 9. The science that deals with the Earth’s physical structure and substance.
  7. 12. The process by which one tectonic plate moves under another.
  8. 14. A large sea wave caused by an underwater earthquake or volcanic eruption.
  9. 16. A molecule composed of three oxygen atoms, found in the Earth’s stratosphere, that absorbs ultraviolet radiation.
  10. 17. An opening in the Earth’s crust through which molten lava, ash, and gases are ejected.
  11. 18. The preserved remains or impression of a prehistoric organism.
  12. 21. Molten rock beneath the Earth’s surface.
  13. 24. The supercontinent that existed during the late Paleozoic and early Mesozoic eras.
  14. 25. The rigid outer layer of the Earth, consisting of the crust and upper mantle.