How do biogeochemical cycles influence Earth’s spheres?
Activity 1 – answer the following questions
Water cycle
1) Hydrosphere interacts with the atmosphere in many ways. In what form does water exist in the
atmosphere?
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2) Describe how atmospheric water can be recycled back into the atmosphere through the
lithosphere and the biosphere (plants and animals). Include all the processes involved.
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Nitrogen cycle
1) Describe two ways how atmospheric Nitrogen can end up in the lithosphere?
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2) In what form does nitrogen exist in the lithosphere?
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3) Describe how lithospheric nitrogen end up in animals?
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Carbon cycle
1) Describe the processes involved in recycling atmospheric CO2 into the biosphere and back into the
atmosphere
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2) How does the lithosphere store atmospheric CO2?
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3) What process release carbon stored in the lithosphere back into the atmosphere? _____________
4) How can atmospheric CO2 end up in animals?
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5) How can atmospheric CO2 end up in the ocean?
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Rock cycle
1) What are the three main types of rocks?
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2) Which type of rocks are involved in storing carbon and the formation of fossil fuels?
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3) Which two processes are involved in the formation of sedimentary rocks?
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Activity 2 –
1. Choose an article from the list in Google classroom
2. Read your chosen article
3. Describe in your own words what the article is about (make a short summery about the
article)
4. Identify which of the Earth’s spheres are involved
5. Describe how the spheres interact in this example.