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