This medium-level worksheet has students fill in blanks, and match items from two columns to practice food webs and energy skills.
It includes 10 questions across 2 sections for focused practice.
Style:
Food Webs and Energy
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A invasive species is one that is not native to an ecosystem and can disrupt food webs.
2. When prey populations decrease, predator populations usually decrease too.
3. An energy pyramid is widest at the bottom because producers hold the most energy.
4. Vultures are scavengers because they feed on animals that have already died.
5. A food web with many species is more stable than one with only a few species.
6. Organisms at the same feeding level in an energy pyramid share a trophic level.
7. If all the plants in a grassland died, the herbivores would be the first consumers to lose food.
8. Nutrients are recycled in an ecosystem, but energy flows in only one direction.
9. Tiny animals called zooplankton eat phytoplankton and are primary consumers in the ocean.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each term to its correct definition.
food chain
→ a single path of energy from producer to consumer
a feeding step in a food chain or web
food web
→ many overlapping food chains in an ecosystem
many overlapping food chains in an ecosystem
energy pyramid
→ a diagram showing energy decreases at each level
a single path of energy from producer to consumer
trophic level
→ a feeding step in a food chain or web
a diagram showing energy decreases at each level
Food Webs and Energy
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) A invasive species is one that is not native to an ecosystem and can disrupt food webs.
2) When prey populations decrease, predator populations usually decrease too.
3) An energy pyramid is widest at the bottom because producers hold the most energy.
4) Vultures are scavengers because they feed on animals that have already died.
5) A food web with many species is more stable than one with only a few species.
6) Organisms at the same feeding level in an energy pyramid share a trophic level.
7) If all the plants in a grassland died, the herbivores would be the first consumers to lose food.
8) Nutrients are recycled in an ecosystem, but energy flows in only one direction.
9) Tiny animals called zooplankton eat phytoplankton and are primary consumers in the ocean.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each term to its correct definition.
food chain
→ a single path of energy from producer to consumer
a feeding step in a food chain or web
food web
→ many overlapping food chains in an ecosystem
many overlapping food chains in an ecosystem
energy pyramid
→ a diagram showing energy decreases at each level
a single path of energy from producer to consumer
trophic level
→ a feeding step in a food chain or web
a diagram showing energy decreases at each level
Ready to Practice?
Complete each section carefully.
10 Questions
10-15 minutes
Auto-graded
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