Homeroom Warm Up2-4-14

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 UP2-4-14

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

1. 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?

Science Closure2-4-14

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 carbon-oxygen cycle.

Q: Interpret this Diagram

Reinforcement/Extension

HW: Lesson Summary/Carbon CycleHW: Study Island “Photosynthesis vs.

Cellular Respiration”Research Global Warming/ Impact of

Fossil Fuel use