Our Planet--EARTH

2. process by which a gas changes into a liquid
4. Earth system that contains all living things
7. natural phenomenon marked by gradual changes that lead toward a particular result
8. average weather pattern for a region over a long period of time
11. system that contains all Earth's water
14. process that moves large bodies of Earth materials to higher elevations
15. solid part of Earth
16. force exerted over an area
18. process by which plants release water vapor through their leaves
19. cycle continuous movement of water on, above, and below Earth's surface

1. mixture of gases that forms a layer around Earth
3. state of the atmosphere at a certain time and place
5. of processes that transport and continually change rocks into different forms
6. water that contains less than 2.0 percent dissolved salts
9. naturally occurring, inorganic solid that has a crystal structure and definite chemical composition
10. process by which a liquid changes into a gas
12. naturally occurring solid composed of minerals and sometimes other materials such as organic matter
13. moisture that falls from clouds to Earth's surface
17. water that is stored in cracks and pores beneath Earth's surface