Students complete nine sentences about energy pyramid structure, trophic levels as feeding positions, and the percentage of energy transferred between levels. The matching activity pairs producer, primary consumer, secondary consumer, and decomposer with their ecological roles.
Energy pyramid structure and trophic level matching connect individual organism roles to the larger pattern of how energy decreases as it moves through a food web.
Style:
Food Webs and Energy
Part A: Fill in the Blank
Write the missing word or number on each line.
1. The base of an energy pyramid is made up of producers.
2. A trophic level is a feeding level in a food chain.
3. Only about ten percent of energy is passed from one trophic level to the next.
4. Secondary consumers eat primary consumers.
5. An organism that eats a primary consumer is called a secondary consumer.
6. Decomposers recycle nutrients back into the soil for producers to use.
7. A food web is more complex than a single food chain because it has many paths.
8. Hawks, wolves, and sharks are examples of top predators.
9. Plants use sunlight, water, and carbon dioxide to make food through photosynthesis.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
producer
→ makes its own food from sunlight
breaks down dead organisms
primary consumer
→ eats producers directly
makes its own food from sunlight
secondary consumer
→ eats primary consumers
eats primary consumers
decomposer
→ breaks down dead organisms
eats producers directly
Food Webs and Energy
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) The base of an energy pyramid is made up of producers.
2) A trophic level is a feeding level in a food chain.
3) Only about ten percent of energy is passed from one trophic level to the next.
4) Secondary consumers eat primary consumers.
5) An organism that eats a primary consumer is called a secondary consumer.
6) Decomposers recycle nutrients back into the soil for producers to use.
7) A food web is more complex than a single food chain because it has many paths.
8) Hawks, wolves, and sharks are examples of top predators.
9) Plants use sunlight, water, and carbon dioxide to make food through photosynthesis.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
producer
→ makes its own food from sunlight
breaks down dead organisms
primary consumer
→ eats producers directly
makes its own food from sunlight
secondary consumer
→ eats primary consumers
eats primary consumers
decomposer
→ breaks down dead organisms
eats producers directly
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10 Questions
10-15 minutes
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