Balancing Reservoirs
Balancing Reservoirs is a Grade 7 science skill from Amplify Science California, Chapter 3: Carbon Movement in Ecosystems. Students learn how carbon cycles between abiotic reservoirs (atmosphere) and biotic reservoirs (organisms and waste), with an inverse mathematical relationship in a closed system—when abiotic carbon decreases, biotic carbon increases by the same amount, demonstrating conservation of carbon.
Key Concepts
In a closed system, these reservoirs share an inverse relationship. A decrease in abiotic carbon corresponds mathematically to an equal increase in biotic carbon. If the air is empty, the carbon is locked in the biomass.
Common Questions
What are carbon reservoirs?
Carbon reservoirs are the major storage pools where carbon is found. The abiotic reservoir includes the atmosphere, while the biotic reservoir includes living organisms, dead organisms, and organic waste.
What is the relationship between abiotic and biotic carbon reservoirs?
In a closed system, abiotic and biotic carbon have an inverse relationship. A decrease in atmospheric (abiotic) carbon corresponds mathematically to an equal increase in carbon stored in organisms (biotic).
How does carbon move between reservoirs?
Carbon moves between the atmosphere and organisms through processes like photosynthesis (taking CO2 from the air) and cellular respiration (releasing CO2 back to the air).
What textbook covers carbon reservoirs for Grade 7?
This topic is covered in Amplify Science California, Grade 7, Chapter 3: Carbon Movement in Ecosystems.