Homeroom Warm Up
2-4-14
On this day in 1913, Rosa
Parks was born. In 1955, Rosa
Parks was arrested and fined
for not giving up her seat on
the bus to a white passenger.
Many people admired her for
her confidence and bravery. If
you had been Rosa Parks in
this situation, would have done
the same thing? Why or why
not?
Science Warm UP
2-4-14
Write a couple of sentences to explain
what you already know about the
carbon-oxygen cycle? Be prepared to
share your thoughts.
THE CARBON CYCLE

GLE 0707.3.2 Investigate the
exchange of oxygen and carbon
dioxide between living things and the
environment.
Objective: TLW interpret a diagram of the
carbon-oxygen cycle.
Q: Interpret this diagram
Q: Interpret this Diagram
What Is Carbon?

An element

The basis of life on earth

Found in rocks, oceans, atmosphere
Carbon Cycle

The same carbon atoms are used
repeatedly on earth. They cycle between
the earth and the atmosphere.
Plants Use Carbon Dioxide
Plants pull carbon dioxide from the
atmosphere and use it to make food –—
photosynthesis.
 The carbon becomes part of the plant
(stored food).

Animals Eat Plants

When organisms eat plants, they take in
the carbon and some of it becomes part
of their own bodies.
Plants and Animal Die

When plants and animals die, most of
their bodies are decomposed and carbon
atoms are returned to the atmosphere.

Some are not decomposed fully and end
up in deposits underground (oil, coal,
etc.).
Carbon Slowly Returns to Atmosphere

Carbon in rocks and underground
deposits is released very slowly into the
atmosphere.

This process takes many years.
The Carbon Cycle
Video Questions
Photosynthesis and respiration are two processes
in the carbon cycle. Compare them in regard to
gas used and released, compounds formed and
broken down and energy used and released.
2. What role do producers play in the Carbon Cycle?
3. What role do consumers play in the Carbon
Cycle?
4. What role do decomposers play in the Carbon
Cycle?
1.
Science Closure
2-4-14
Which of the following describes
the role of plants in the diagram
below?
A. They use both oxygen and carbon
dioxide.
B. They use oxygen and produce
carbon dioxide.
C. They produce oxygen and use
carbon dioxide.
D. They produce both oxygen and
carbon dioxide.
PAIR UP
Create your own unique diagram of the
Carbon Oxygen Cycle.
 Use labels and arrows where appropriate.

TLW interpret a diagram of the carbonoxygen cycle.
Q: Interpret this Diagram
Reinforcement/Extension
HW: Lesson Summary/Carbon Cycle
 HW: Study Island “Photosynthesis vs.
Cellular Respiration”
 Research Global Warming/ Impact of
Fossil Fuel use
