1. Begin filling in the water cycle word definitions (in pencil, just in case) Begin filling in the water cycle word definitions (in pencil, just in case) Question of the Day:

2. Water Cycle & Carbon Cycle

3. The Water Cycle Major Processes: Precipitation Precipitation Infiltration Infiltration Runoff Runoff Evaporation Evaporation Transpiration Transpiration Condensation Condensation

4. Precipitation Water falls to the earth’s surface as precipitation. Water falls to the earth’s surface as precipitation. Precipitation can be in the form of rain, snow, sleet, hail, fog, etc. Precipitation can be in the form of rain, snow, sleet, hail, fog, etc.

5. Infiltration & Runoff Infiltration Infiltration When precipitation falls, some of the water is soaked up by the ground in a process known as infiltration. When precipitation falls, some of the water is soaked up by the ground in a process known as infiltration. The water in the earth is known as ground water. The water in the earth is known as ground water. Runoff Runoff When precipitation falls, some of the water is not soaked up by the ground. Instead, it remains on the surface and travels downhill. When precipitation falls, some of the water is not soaked up by the ground. Instead, it remains on the surface and travels downhill. The water is known as runoff. The water is known as runoff.

6. Evaporation & Transpiration Evaporation Evaporation The process in which water changes from the liquid form to the gas form. The process in which water changes from the liquid form to the gas form. Water evaporates off of lakes, streams, rivers, oceans, etc. constantly. Water evaporates off of lakes, streams, rivers, oceans, etc. constantly. Transpiration Transpiration The process in which water evaporates from the leaves of plants. The process in which water evaporates from the leaves of plants. Transpiration is a sun-driven process. Transpiration is a sun-driven process.

7. Condensation The process of water changing from the gas form to the liquid form. The process of water changing from the gas form to the liquid form. Water that evaporates rise up in the atmosphere. The water condenses, and clouds form. Water that evaporates rise up in the atmosphere. The water condenses, and clouds form. Eventually, water is returned to the earth’s surface as precipitation. Eventually, water is returned to the earth’s surface as precipitation.

8. Carbon Cycle Major Processes: Photosynthesis, Cellular Respiration, and Combustion Respiration, and Combustion

9. Photosynthesis During photosynthesis, plants use the sun’s energy, water, and carbon dioxide to make sugar. They give off oxygen. During photosynthesis, plants use the sun’s energy, water, and carbon dioxide to make sugar. They give off oxygen. Photosynthesis takes carbon out of the atmosphere. Photosynthesis takes carbon out of the atmosphere. CO 2 + H 2 O + solar energy  sugar + O 2 CO 2 + H 2 O + solar energy  sugar + O 2

10. Cellular Respiration Organisms (plants and animals) use oxygen and give off carbon dioxide. Organisms (plants and animals) use oxygen and give off carbon dioxide. Cellular respiration returns carbon to the atmosphere. Cellular respiration returns carbon to the atmosphere. Sugar (food) + O 2  energy + CO 2 + H 2 O Sugar (food) + O 2  energy + CO 2 + H 2 O

11. Combustion The burning of fossil fuels (coal, oil, and natural gas) is known as combustion. The burning of fossil fuels (coal, oil, and natural gas) is known as combustion. Combustion uses oxygen and returns carbon to the atmosphere. Combustion uses oxygen and returns carbon to the atmosphere.

12. CO 2 (Air) Oceans act as sink for carbon Some is released CO 2 Compression of organic matter Rocks- CaCO 3 limestone Natural Gas Oil Fossil Fuels Combustion (human & natural) Respiration Coal Switch to handout on carbon cycle… * Add the red words to the diagram

13. Review of Ticket out the Door

14. 1. 1. What source of energy ultimately drives the carbon cycle? Explain. The Sun: It allows plants to pull CO 2 out of the air, do photosynthesis and put carbon into plant sugar (C 6 H 12 O 6 ) and release O 2 Back of Carbon Cycle Handout…

15. 2. In what form is carbon found in the atmosphere? Where does it come from? CO 2 (carbon dioxide). It is put into the atmosphere by: 1. respiration (plants & animals) AND 2. combustion (burning of fossil fuels & forests) Back of Carbon Cycle Handout…

16. 3. Cellulose, which makes up the walls of plant cells, contains carbon. What is the source of this carbon? Cellulose is a complex of carbohydrate (polysaccharide) made of sugar molecules and linked together by plants. Photosynthesis: Change CO 2 into high energy sugar Back of Carbon Cycle Handout…

17. 4. How does carbon become part of the body of an animal? How is carbon released from the body of of an animal? Animals eat carbon in plant foods, digest it, and make it into animal body compounds (fat, carb., & protein). Excess carbon is exhaled as CO 2 Back of Carbon Cycle Handout…

18. 5. Briefly explain how humans are overloading the carbon cycle. We are increasing in population & burning more and more fossil fuel (coal, oil, & natural gas) in our homes and industries. Greenhouse Gas Excess CO 2  traps heat on earth Back of Carbon Cycle Handout…

19. Make a list of all the activities in your lives that contribute to rising levels of carbon dioxide. Make a list of all the activities in your lives that contribute to rising levels of carbon dioxide. How can you reduce your “carbon footprint” ? How can you reduce your “carbon footprint” ? Ticket to Exit: