Here are the answers to the questions on the worksheet, based on the numbers provided in the pyramid.
1. How much energy do the grasshoppers get from eating one square meter of grass per year?
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Reasoning: Look at the level of the pyramid where the grasshoppers are located. The number written next to that level represents the energy available at that trophic level.
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Answer: 4,000 kc
2. What percentage of energy consumed by the grasshoppers is passed on to the squirrels?
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Reasoning: To find the percentage, you compare the energy of the squirrel level to the energy of the grasshopper level.
* Energy in Squirrels = 400 kc
* Energy in Grasshoppers = 4,000 kc
* Calculation: $(400 \div 4,000) \times 100 = 10\%$
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Answer: 10%
3. Label each level of the pyramid.
(Starting from the bottom and going up)
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Bottom Level (Grass): Producers
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Second Level (Grasshoppers): Primary Consumers
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Third Level (Squirrels): Secondary Consumers
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Top Level (Hawk): Tertiary Consumers
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Final Answer:
1. 4,000 kc
2. 10%
3. Bottom: Producers; Second: Primary Consumers; Third: Secondary Consumers; Top: Tertiary Consumers
Parent Tip: Review the logic above to help your child master the concept of pyramid of energy worksheet.
