Lesson 04 ­ Carbon Cycle
Review GOAL:
Make sure you understand the process of Eutrophication and how it affects oxygen levels in the ocean.
New GOAL:
Start learning how the Carbon Cycle works and work towards drawing the whole thing on your own. (test question!)
1. Complete the D2L quiz
2. Homwork Check 3. Take up Lake Winnipeg worksheet 4. Take up Blue Algae questions from video
5. Start The Carbon Cycle
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Lesson 04 ­ Carbon Cycle
The Carbon Cycle
Carbon Cycle video
living organisms
land
Carbon is the key element for all ____________ ______________. It can be found in almost any part of nature, from plants to animals, and from the _________________ to the _____________________.
air
The movement of carbon on Earth exists as a cycle. Carbon transmits through different forms between the _________________, ___________, _________________, and ___________________. Carbon in the atmosphere is in the form of ____________ ____________ ( CO2)
Since CO2 is the main cause of climate change, the sustainability of ecosystems is impacted by process that ____________ and __________ CO
2 from the atmosphere.
atmosphere
hydrosphere lithosphere
biosphere
carbon dioxide
add
remove
process that adds CO to the cycle
process that removes CO2 from the cycle
Carbon sink: _________________________________________________________
2 Carbon source: _______________________________________________________ THE CARBON CYCLE
CO2
There are 6 main processes involved in the carbon cycle.
1. Photosynthesis ­ Plants use sunlight to “capture” ___________ _______________ from the atmosphere (as CO2) to make _______________. The chemical reaction is: light
H2O + CO2 → C6H12O6 + O2
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Lesson 04 ­ Carbon Cycle
2. Respiration – Process by which ____________ and plants (in the dark) use oxygen and sugar to make energy and CO2.The chemical reaction is: 3. Food Chain: Carbon is also passed on from producers (____________) to consumers (_________________) as it moves up the food chain. 4. Decay: Decomposers break down dead plant and animal material. Some of the carbon is released as CO2 into the _________________ and some of it enters the __________. Over a very long time some this carbon in the soil will be compressed to form _____________ _____________.
5. Combustion: During the combustion of ___________ ______________ (oil, gasoline, natural gas) and forest fires, __________ is released into the atmosphere
6. Oceans dissolving CO2: A portion of the CO2 that is in the __________________ dissolves into the oceans. When CO2 dissolves in water it produces ______________ ________. This is the chemical reaction:
Videos on 1) relationship of CO2 and global warming 2) Ocean acidification Classify each of the six processes as either a carbon source or sink
Carbon Sources Carbon Sinks
Work on NOW and finish for HW if not done
The Carbon Cycle and Greenhouse Effect Worksheet
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