Earths systems

5. the study of earth
6. or squeeze through solids and liquid
9. the inter most layer of the earth
11. water held under ground in soil in deep reservoirs
12. the mostly solid bulk of Earth's interior.
14. third layer of the atmosphere, directly above the stratosphere and directly below the thermosphere.
15. the solid outer most layer of the earth
16. still in existence
17. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
18. a solid inorganic material found in nature
19. the study of earthquakes and related phenomena
21. move side to side through only solids
22. formes from pre-existing rock and fossils

1. when heat,presure,cooling,melting,and weathering cause rocks to change from one type to another
2. the outer part of the earth
3. forms under extreme heat and pressure
4. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
6. group of animals that occupcy a certain area
7. a tool that m
8. its a natural gas
10. no longer in existence
13. details of earthquakes
20. forms when molten rock crystallizes and solidifies