Year 8 Science Term 2 Consolidation

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Across
  1. 2. The deepest layer of the earth (middle of the earth)
  2. 4. The term used to describe the process of breaking down rocks by natural processes
  3. 5. The digging up of ore or minerals from the ground
  4. 9. A type of rock that is layered, it’s formed by sediments being compressed and cemented.
  5. 11. These make up rocks, they contain 1 or more elements and can be mined as ores
  6. 12. A type of rock formed when heat and/or pressure causes changes in crystals, forming a new type of rock.
  7. 17. Melted rock that has erupted from the earth and sits on the surface
  8. 18. These are weak spots in the earth’s crust that crack and allow magma to flow to the surface
  9. 19. The name for melted rock
  10. 20. A type of Igneous rock that has small crystals, cools quickly and forms on the surface of the earth
Down
  1. 1. A type of mine used when ore is deep in the ground
  2. 3. tiny rock particles broken down by wind or water
  3. 6. The name for melted rock under the ground
  4. 7. Rocks that are mined from the Earth
  5. 8. A type of erosion where sand grains or topsoil is carried away
  6. 10. When a mine is no longer being used and the land gets returned to its original state or better
  7. 13. The movement of soil and weathered material from one place to another
  8. 14. A type of mine used when ore is close to the surface and over a large area
  9. 15. A type of Igneous rock that has large crystals, cools slowly and forms underground
  10. 16. A type of erosion caused by the action of the sea
  11. 21. The top layer of the Earth
  12. 22. A type of rocks that is made from fire and formed when melted rock cools and hardens