Chemistry Revision

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Across
  1. 3. a metal compound that makes up rocks
  2. 4. This is how rocks change into other types of rock over time.
  3. 8. The effect causing global warming
  4. 13. The middle two sections of the Earth
  5. 14. Using electricity to separate a compound into its elements.
  6. 17. formed when a rock undergoes extreme heat or pressure.
  7. 19. The process of separating a metal from the other elements in a rock.
  8. 20. The part of Earth's core that is liquid.
  9. 21. A man-made material made from minerals like clay, cooked at high temperatures.
  10. 22. When a more reactive metal replaces a weaker metal.
  11. 23. The breaking of a rock into sediment
Down
  1. 1. Liquid rock below the Earth's surface
  2. 2. the mixture of gases surrounding Earth.
  3. 5. This is how Carbon is transferred from one store to another.
  4. 6. Formed when lava cools
  5. 7. a material with small gaps or holes allowing water to seep through.
  6. 9. Formed by layers of sediment
  7. 10. Solid part of Earth but can move like a liquid.
  8. 11. Long-term weather patterns of an area.
  9. 12. When sediment is placed at the bottom of a sea or lake.
  10. 15. A rock with enough metal to make it worthwhile extracting.
  11. 16. Liquid rock above the Earth's surface
  12. 18. The outer section of the Earth