Test
Energy flow in ecosystems practice
This 7th-grade activity helps students practice understanding energy flow in ecosystems through questions about food webs, trophic levels, and the 10% rule, requiring them to identify organisms, order trophic levels, and complete related concepts. It encourages critical thinking about ecological relationships and energy transfer.
By Edform · Science · Grade 7 · Published Oct 15, 2026 · New
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Questions
- Which organism is always found at the base of a food web?
- Select all examples of primary consumers.
- Put these organisms in order from lowest to highest trophic level.
- Fill in the blank: Only about ___ percent of the energy at one trophic level is passed to the next level.
- Choose the correct term: In a food web, a(n) ___ breaks down dead organisms and recycles nutrients.
- If a plant stores 500 calories of energy, how much energy would be available to a primary consumer that eats the plant?
- Match each term to its definition.
- Sort the following organisms into their correct trophic levels.
- Decide if each statement about energy flow in ecosystems is true or false.
- What is the main source of energy for almost all ecosystems?
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