Biogeochemical Cycles Exploration
A Grade 6 science worksheet exploring the water, carbon, and nitrogen cycles and their importance in ecosystems.
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Biogeochemical Cycles Exploration
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Read each question carefully and answer to the best of your ability. Refer to the diagrams provided to help you understand the different biogeochemical cycles.
1. Look at the image below. Which process describes water vapor turning into liquid water to form clouds?

Evaporation
Condensation
Precipitation
Transpiration
2. What is the main source of energy that drives the water cycle?
Wind
Gravity
The Sun
Plants
3. Photosynthesis is the process by which plants take in from the atmosphere and convert it into food.
4. When animals breathe out, they release into the atmosphere.
5. The burning of fossil fuels releases a large amount of into the atmosphere, contributing to climate change.
6. Look at the image below. What is the role of bacteria in the nitrogen cycle?

7. The water, carbon, and nitrogen cycles are all examples of biogeochemical cycles.
True
False
8. The carbon cycle only involves the exchange of carbon between living organisms.
True
False
Match each cycle on the left with its key process on the right.
9. Water Cycle
a. Photosynthesis
10. Carbon Cycle
b. Nitrification
11. Nitrogen Cycle
c. Evaporation