Across
- 2. Molten rock found above the Earth's surface
- 6. A hot spring of boiling mud is called a ___.
- 7. This type of power plant uses steam directly from a resevoir (two words with no space)
- 8. In this type of geothermal system, water is pumped onto hot rocks to create a reservoir.
- 9. This type of rock can hold water within it
- 12. The term for the gases which come out of the Earth's crust.
- 13. This type of energy is harnessed from the Earth itself.
- 15. ___ plates move about under the Earth's surface and are what cause earthquakes and volcanic eruptions.
- 17. This device transfers energy from one liquid to another (two words with no space).
- 19. This word can be used to describe a device wih flexible or changeable arrangements
- 20. An unnatural/artificial lake which is used as a water supply.
Down
- 1. ___ water contains all the filth leftover from humanity and must be treated before being released back into "the wild".
- 3. This type of gas is typically found within groundwater and smells terrible (two words with no space).
- 4. A massive crack in rock is known as a ___.
- 5. The movement of electricity through a conductor is known as ___.
- 10. ___ power plants use water that is quickly converted to steam to drive their turbines.
- 11. This type of power plant transfers heat into a liquid to create steam.
- 14. The Earth layer which consists of molten and solid rock.
- 16. The part of the Earth we live on.
- 18. This type of water can only be found underground and usually has bits of rock and minerals in it.