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