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Biogeochemical Cycles

Biogeochemical Cycles. No bell ringer today. Finish NWEA test – if you need to Go to classworks and click on byrd . Work on assignments listed. When you finish, you can get on coolmath . THIS IS A GRADE!!!!!. Bell ringer - Thursday. 1. Which sphere deals with land?

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Biogeochemical Cycles

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  1. Biogeochemical Cycles

  2. No bell ringer today • Finish NWEA test – if you need to • Go to classworks and click on byrd. • Work on assignments listed. • When you finish, you can get on coolmath. • THIS IS A GRADE!!!!!

  3. Bell ringer - Thursday • 1. Which sphere deals with land? • 2. Which sphere deals with water? • 3. Which sphere deals with air? • 4. Which sphere deals with life? • 5. Give me 1 example of how geosphere interacts with atmosphere.

  4. Hydrologic Cycle • aka: Water cycle • Defined: Movement of water through the atmosphere • 75% of the earth’s surface is covered by water • Most water undrinkable (salty & frozen)

  5. Hydrologic Cycle • Water rises in two ways: 1) Evaporation: heat from the sun changes water from liquid to gas 2) Transpiration: evaporation of water from the leaves of plants H2O H2O

  6. Hydrologic Cycle • Water rises in two ways: 1) Evaporation: heat from the sun changes water from liquid to gas 2) Transpiration: evaporation of water from the leaves of plants • Stomata: microscopic pores on underside of leaves H H O

  7. H2O H2O H2O H2O Hydrologic Cycle H2O H2O H2O H2O H2O H2O H2O H2O • Water rises in two ways: 1) Evaporation: heat from the sun changes water from liquid to gas 2) Transpiration: evaporation of water from the leaves of plants • Stomata: microscopic pores on underside of leaves H2O H2O

  8. H2O H2O H2O H2O Hydrologic Cycle H2O H2O H2O H2O H2O H2O H2O H2O • Condensation: changing of water vapor to liquid water • Cause: cool temperatures Moisture in the air condensed when it came into contact with the cold bottle

  9. H2O H2O H2O H2O Hydrologic Cycle H2O H2O H2O H2O H2O H2O H2O H2O • Condensation: changing of water vapor to liquid water • Cause: cool temperatures • Clouds are the effects of condensation

  10. H2O Hydrologic Cycle H2O H2O • Precipitation: Falling of water back to the surface of the Earth • Rain • Snow • Sleet • Hail

  11. H2O Hydrologic Cycle H2O H2O • On the ground: 1) Runoff: water runs downhill into rivers, lakes, oceans… 2) Infiltration: water soaks into soil and collects as groundwater H2O H2O H2O H2O H2O H2O H2O

  12. Hydrologic Cycle • On the ground: 1) Runoff: water runs downhill into rivers, lakes, oceans… 2) Infiltration: water soaks into soil and collects as groundwater well Groundwater is “recharged” by infiltration

  13. Hydrologic Cycle condensation precipitation transpiration infiltration runoff evaporation

  14. Bell ringer – Monday – use your notes • 1. What is the water cycle? • 2. What part of the water cycle changes water vapor back to a liquid? • 3. What is evaporation in plants called? • 4. What are the 4 types of precipitation? • 5. What is runoff? • 6. What is infiltration?

  15. Bell ringer - Tuesday • Write the steps of the water cycle in order. • Precipitation, runoff and infiltration, evaporation and transpiration, condensation,

  16. NWEA MAP test – listen for directions

  17. Oxygen Cycle • Autotrophs: - make their own food • Photosynthesis requires the intake in CO2 • Produces O2 waste • Heterotrophs: take in food • Cellular respiration requires the intake in O2 • Produces CO2 waste O2 O2 CO2 CO2

  18. Carbon Cycle • Carbon (C) is the basis of organic molecules • Proteins • Carbohydrates • Lipids • Nucleic acids

  19. Carbon Cycle CO2 CO2 CO2 CO2 CO2 • Plants and Producers • Absorb CO2 during photosynthesis • Produce glucose (C6H12O6) via photosynthesis glucose

  20. Carbon Cycle CO2 CO2 CO2 CO2 CO2 • Animals • Glucose moves up the food chain • CO2 released into atmosphere CO2 glucose CO2 glucose

  21. Carbon Cycle CO2 CO2 CO2 CO2 CO2 • Decomposers • Obtain glucose by feeding on the dead • CO2 released into atmosphere CO2 glucose CO2 CO2 glucose glucose glucose glucose

  22. Carbon Cycle CO2 CO2 CO2 CO2 CO2 • Human contribution • Excess CO2 is being released from the burning of fossil fuels (coal, oil, natural gas) • Cycle is out of balance CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 glucose CO2 CO2 glucose glucose glucose glucose

  23. Carbon Cycle CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 glucose CO2 CO2 glucose glucose glucose glucose

  24. Do not come in loud!!! Sit down and pull out bell ringer.Bell ringer- Friday – use your textbook • What are greenhouses gases? Pg. 14 • What is the most abundant substance in living organisma? Pg. 13 • How are humans disrupting the carbon cycle? Pg. 14

  25. Finish graphic organizer paper from yesterday. • After you finish, get paper from me. • Answer questions and color picture according to answers.

  26. Bell ringer - Monday • Should the internet be controlled/regulated? If yes, who should control it and why? • If no, why not?

  27. Phosphorus (P) Cycle • Problem: No phosphorus in atmosphere • Phosphorus needed to make: • ATP • DNA • lipids

  28. Phosphorus (P) Cycle • Phosphorus released from the weathering of rocks • Producers absorb phosphorus through their roots 2 1 p p

  29. Phosphorus (P) Cycle • Phosphorus moves up the food chain as animals eat producers • Decomposers obtain phosphorus as they feed on dead remains • Phosphorus released in waste p 2 p 1 p p p p 3 p p 4

  30. Phosphorus (P) Cycle • Human Contribution • Fertilizers (contain phosphorus) added to help grow crops • Problem: • Phosphorus runs off with rain

  31. Phosphorus (P) Cycle • Human Contribution • Fertilizers (contain phosphorus) added to help grow crops • Problem: • Phosphorus runs off with rain p p p p p p p p p p

  32. Phosphorus (P) Cycle • Human Contribution • Fertilizers (contain phosphorus) added to help grow crops • Problem: • Phosphorus runs off with rain • Algal blooms = extreme growth of algae • Eutrophication = dead zone due to lack of O2 and change in pH p p p p p p

  33. Nitrogen Cycle • Problem: Nitrogen in atmosphere (N2) is unusable • N2 bonds very stable • Nitrogen needed to build DNA N N

  34. Nitrogen Cycle N2 • Step 3: Producers absorb nitrates through their roots • Step 4: Consumers ingest N through the food chain • Step 5: Decomposers obtain N from the dead… return nitrates to soil • Step 1: Soil Bacteridzddxzaconvert N2 into usable nitrates • Step 2: Bacteria absorb nitrates… release N waste into air N 3 4 N N2 2 5 N Nitrates Nitrates Nitrates Nitrates Nitrates 1 Nitrogen fixation

  35. O O N N The Role of Lightning O O N N N N N N N N N N O O N N • Energy from lightning breaks apart N2 into N… and O2 into O • Nitrogen oxides form • Nitrogen oxides react with rain water to form Nitrates (NO3) N N N N O O O O N N O O O O O O O O O O O O O O O O N N N N N N N N O O O O O O O O O O O O O O O O N N N N N N N N O O O O O O O O

  36. Practice Quiz • Name and define the 6 stages of the water cycle. • How is oxygen released into the atmosphere? • In which cellular process is oxygen removed and used from the atmosphere? • Which organic molecule is created by photosynthesis? • In which cellular process is carbon dioxide released into the atmosphere? • How are humans disrupting the carbon cycle? • What happens during nitrogen fixation? • How do plants obtain nitrogen? • Which objects release phosphorus over time? • How are humans disrupting the phosphorus cycle?

  37. Bell ringer – Write the letter of the correct answer • 1. greenhouse gas • 2. stomata • 3. step 2 of the phosphorous cycle • 4. glucose • 5. Cellular respiration • 6. decomposers • A. Producers absorb phosphorus through their roots • B. Cellular process where carbon dioxide is released into the atmosphere • C. Plants use sunlight, water, and CO2 to make this. • D. Gases that result from the burning of fossil fuels. • E. Small holes on the underside of plants. • F. Organism that feeds on dead organisms.

  38. Put answers in notebook. • What happens during nitrogen fixation? • How do plants obtain nitrogen? • Which objects release phosphorus over time? • How are humans disrupting the phosphorus cycle?

  39. Name the cycle: water, carbon, nitrogen, or phosphorus • 1. Bacteria play a large role in this cycle. • 2. Evaporation is one of the steps in this cycle. • 3. This cycle is impacted by forest fires and deforestation (cutting down trees) • 4. Rocks are broken down by weathering in this cycle. • 5. Plants go through photosynthesis in this cycle. • 6. Lightning plays a role in this cycle.

  40. Draw a picture with all cycles on it.(water, oxygen, carbon, phosphorous and nitrogen) • Be sure to use arrows and label arrows. • Use different colored arrows for each cycle.

  41. Step 1. Make a picture with clouds, • rain or snow, • body of water, • trees/plants or flowers, • animals, • decomposers (mushrooms or earthworms), • bacteria in the soil, • rocks, • Human contribution – ex. Factories, cars, fire

  42. Step 2 – do one cycle at a time – use a different color arrow for each cycle. Label the arrows

  43. Bell ringer - Tuesday • 1. How can farming affect the phosphorus cycle? Notes or pg. 17 in textbook • 2. How do organisms use the element phosphorus? Notes or pg. 16 • 3. What are greenhouses gases? Notes or pg. 14

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