Water Systems

6. the change of state from a gas to a liquid; occurs when a gas loses thermal energy
7. When liquid or solid water falls down due to gravity
8. source of pollution that comes from one place
10. an area with a small localized climate that differs from the climate around it
11. physical material from which something is made or which has discrete existence
12. water is able to pass through it
14. a line dividing land whose drainage flows toward the given stream from land whose drainage flows away from that stream
17. used to remove unwanted impurities from water such as sediment, taste and odor, hardness and bacteria
18. process by which an element or compound transitions from its liquid state to its gaseous state below the temperature at which it boils
19. any body of water above ground
20. water found underground in the cracks and spaces in soil, sand and rock

1. water is not able to pass through it
2. the introduction of harmful materials into the water
3. an area or ridge of land that separates waters flowing to different rivers, basins, or seas
4. a resource that can be used repeatedly and does not run out because it is naturally replaced
5. mixture of coagulant with dirt in water that shapes something that looks like giant snowflakes
9. source of pollution that comes from many different places
13. a body of rock and/or sediment that holds groundwater water found underground in the cracks and spaces in soil, sand and rock
15. source of water supply
16. the maximum amount that something can contain