Carbon Cycle LT 1.notebook
March 27, 2014
Carbon Cycle
MS­ LS2 ­3
Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem. Learning Target
Pre
Assess
Big Ideas
Post
Assess
I can describe the three primary processes in the biological (short) carbon cycle.
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Carbon Cycle LT 1.notebook
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Carbon Cycle
What do you already know about carbon? Make a list. Share your list with your elbow partner.
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Carbon Cycle LT 1.notebook
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Video Notes
Make three column headings on your paper: Where is it found, Relationship to life, Link to Climate Change.
As the video plays, jot notes under the correct heading on your note page.
Compare your pre­video notes to your post video notes.
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Carbon Cycle LT 1.notebook
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Carbon Pre
Grade: «grade»
Subject:Science
Date:«date»
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11. What process brings carbon in from the air into the terrestrial(land) food web? A respiration B photosynthesis C decomposition
D ingestion(eating) 5
Carbon Cycle LT 1.notebook
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2 Carbon compounds move from plants to animals via the process(es) of...
A respiration
B photosynthesis
C decomposition
D ingestion(eating) 6
Carbon Cycle LT 1.notebook
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3 Which process(es) releases carbon from food webs back into the air in the form of carbon dioxide?
A respiration
B photosynthesis
C decomposition
D ingestion (eating)
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Statement
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Reflect
What items do you think are most important? Why?
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Learning Target One: The Short Cycle 10
Carbon Cycle LT 1.notebook
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Recycling in the Carbon Cycle
1. According to the video, how is it that living things did not use up all of the earth’s carbon years ago? The same carbon atoms are being recycled through the carbon cycle. This follows the Law of Conservation of Matter.
2. What are the ingredients that green plants use to make food?
Water and carbon dioxide and sunlight.
3. How do animals get the carbon they need? Eating green plants or eating animals that eat plants.
4. What happens to the carbon?
a. Some is broken apart releasing energy.
b. Changed into new compounds to become part of the body.
c. Some is returned to the atmosphere during
respiration.
5. What is respiration?
Process by which organisms convert organic material (food) into
energy using oxygen and releasing carbon dioxide gas (CO2).
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Carbon Cycle LT 1.notebook
March 27, 2014
Decomposition and the Carbon Cycle
1. What role do decomposers play in the carbon cycle?
Decomposers help break once living things back into simple carbon atoms and molecules. 2. What happens to the carbon as it is decomposed?
a. Some is stored in the decomposers body.
b. Some is returned to the atmosphere through respiration.
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Carbon Cycle LT 1.notebook
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Delayed Recycling in the Carbon Cycle
1.Why is the part of the carbon cycle that deals with living plants and
animals referred to as the “short” cycle? This part of the carbon cycle is a relatively quick process when compared to the time involved in the non­
living part of the cycle.
2. How does the carbon stored in fossils and carbon­rich rocks (like
limestone) get released back into the carbon cycle?
Through a process called weathering.
3. How do clams get the carbon they need to form their shells?
The carbon dioxide (CO2) from the atmosphere diffuses into the water or is released from decaying organisms.
4. From what do fossil fuels form?
From once living things that have become buried and cemented over time.
How is the carbon in fossil fuels released back into the cycle?
Carbon is released when fossil fuels are burned (combustion).
The stored CO2 returns to the atmosphere. These CO2 atoms
may have been stored and out of the cycle for millions of years.
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Carbon Cycle LT 1.notebook
March 27, 2014
Accelerating the carbon cycle
1. Why are scientists worried about the amount of carbon dioxide we are
putting into the atmosphere? (What are the possible consequences of an
“unbalanced” carbon cycle)?
Earth warms up because the CO2 acts like a blanket over the earth some of this is good because it keeps earth warm enough for life. However, too much CO2 increases earths temperatures which can lead to melting of the polar ice caps, rise in sea level which will damage coastal areas, extreme weather, increased risk of disease, extinction of certain species.
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Statement
Content/writing space
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