Carbon Cycle Exploration
A Grade 7 science worksheet exploring the carbon cycle, its components, and its importance to Earth's climate.
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Carbon Cycle Exploration
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Read each question carefully and answer to the best of your ability. Refer to the provided diagram where necessary.
Observe the diagram of the carbon cycle below:
1. Which process removes carbon dioxide from the atmosphere?
Respiration
Combustion
Photosynthesis
Decomposition
2. How do animals obtain carbon?
Breathing it in
Absorbing it from the sun
Eating plants or other animals
Through their skin
3. Plants take in carbon dioxide from the atmosphere during a process called .
4. When organisms die, break down their remains, returning carbon to the soil and atmosphere.
5. The burning of fossil fuels releases large amounts of into the atmosphere.
6. The carbon cycle is a one-way path; carbon is not recycled.
True
False
7. Oceans play a significant role in absorbing and storing carbon.
True
False
8. Explain the difference between carbon sources and carbon sinks, providing an example of each.
9. Describe how human activities can impact the balance of the carbon cycle.
Use the words below to complete the sentences.
10. Animals release carbon dioxide into the through the process of .
11. Coal, oil, and natural gas are examples of , which store carbon over long periods.