2. Water Cycle The continuous movement of water between the ocean, the atmosphere and the land by evaporation, condensation, precipitation and runoff The continuous movement of water between the ocean, the atmosphere and the land by evaporation, condensation, precipitation and runoff

3. Water Cycle Evaporation Evaporation –Change from a liquid to a gas –Water to water vapor Condensation Condensation –Change from a gas to a liquid –Water vapor to water Precipitation Precipitation –Rain, snow, sleet or hail

4. Water Cycle Runoff Runoff –Liquid water returning to the ocean –Rivers, ground water and overland flow

5. Water Cycle Infiltration Infiltration –Water soaking into the ground Transpiration Transpiration –Water vapor released into the atmosphere by plants

7. http://ww2010.atmos.uiuc.edu/(Gh)/guide s/mtr/hyd/smry.rxml

10. runoff

12. Precipitation Condensation Runoff Evaporation

15. Nitrogen Cycle The continuous movement of nitrogen from the atmosphere, to plants, back up to the atmosphere The continuous movement of nitrogen from the atmosphere, to plants, back up to the atmosphere Nitrogen is common in the atmosphere but rare in usable forms Nitrogen is common in the atmosphere but rare in usable forms Nitrogen-fixing bacteria Nitrogen-fixing bacteria –bacteria found in soil can take in atmospheric nitrogen and convert it to nitrates

16. Nitrogen Cycle Needed by all organisms (plants and animals) to create amino acids Needed by all organisms (plants and animals) to create amino acids

19. Carbon Cycle The movement of carbon dioxide through the atmosphere, the ocean, rocks, and organisms The movement of carbon dioxide through the atmosphere, the ocean, rocks, and organisms Sources of carbon Sources of carbon –Carbon dioxide CO 2 (atmosphere) –Carbon dioxide CO 2 (dissolved in the ocean) –Carbon (in rocks, coal, oil and natural gas) When burned turns into atmospheric CO 2 When burned turns into atmospheric CO 2

20. Carbon Cycle Needed by plants for photosynthesis without which life could not exist Needed by plants for photosynthesis without which life could not exist Photosynthesis Equation Photosynthesis Equation