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Grade 5 Science · Ecosystems and Food Webs

Grade 5 Ecosystems and Food Webs Practice Test

Build Grade 5 Science skills with five 10-question practice tests on ecosystem parts, habitats, producers, consumers, decomposers, food chains, food webs, and environmental changes.

Ecosystems and Food Webs Practice Tests

These Grade 5 Science practice tests help students explain how living and nonliving parts of ecosystems interact. Students identify habitats, populations, producers, consumers, decomposers, food chains, food webs, energy flow, matter cycling, population changes, and human impacts.

Skills covered

  • Identifying biotic and abiotic ecosystem factors
  • Distinguishing habitats, populations, communities, and ecosystems
  • Classifying producers, consumers, and decomposers
  • Reading food chains and connected food webs
  • Tracing energy flow and nutrient cycling
  • Explaining population changes, competition, and adaptations
  • Using evidence to evaluate habitat restoration and human impacts

How to use these practice tests

Start with the organism or factor described. Decide whether it is living or nonliving, identify its role in the food web, and trace what may happen when food, water, shelter, predators, or environmental conditions change.

For more Grade 5 Science practice, return to the Grade 5 Science category.

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Grade 5 Ecosystems and Food Webs Practice Tests

A 10-question Grade 5 Science practice test on ecosystems, habitats, populations, producers, consumers, decomposers, food chains, food webs, and environmental changes.

Identify the ecosystem role or relationship in each question, then trace how energy, matter, resources, and population changes affect the food web.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

Which food chain is arranged correctly?

Please select an answer first.

Correct answer: A

The correct answer is Grass → grasshopper → frog → snake.

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: Energy moves from the producer grass to the grasshopper, frog, and snake.
  3. Choose the best explanation: The correct choice is Grass → grasshopper → frog → snake.

Energy moves from the producer grass to the grasshopper, frog, and snake.

2. QuestionMultiple choice

What is a food web?

Please select an answer first.

Correct answer: B

The correct answer is A group of connected food chains in an ecosystem..

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: A food web shows that organisms may have several food sources and predators.
  3. Choose the best explanation: The correct choice is A group of connected food chains in an ecosystem..

A food web shows that organisms may have several food sources and predators.

3. QuestionMultiple choice

Why are food webs more realistic than many simple food chains?

Please select an answer first.

Correct answer: C

The correct answer is Most organisms eat or are eaten by more than one kind of organism..

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: Multiple connections better represent feeding relationships in an ecosystem.
  3. Choose the best explanation: The correct choice is Most organisms eat or are eaten by more than one kind of organism..

Multiple connections better represent feeding relationships in an ecosystem.

4. QuestionMultiple choice

What happens to energy as it moves through a food chain?

Please select an answer first.

Correct answer: D

The correct answer is Less usable energy is available at higher levels because organisms use energy for life processes..

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: Organisms use energy for movement, growth, and other processes, so less is available to the next level.
  3. Choose the best explanation: The correct choice is Less usable energy is available at higher levels because organisms use energy for life processes..

Organisms use energy for movement, growth, and other processes, so less is available to the next level.

5. QuestionMultiple choice

If grass decreases in a meadow, what could happen to grasshoppers?

Please select an answer first.

Correct answer: A

The correct answer is Their population may decrease because they have less food..

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: Grasshoppers depend on grass, so less food can reduce their survival and population.
  3. Choose the best explanation: The correct choice is Their population may decrease because they have less food..

Grasshoppers depend on grass, so less food can reduce their survival and population.

6. QuestionMultiple choice

If many grasshoppers disappear, what could happen to frogs?

Please select an answer first.

Correct answer: B

The correct answer is The frog population may decrease because less prey is available..

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: Frogs that eat grasshoppers may have less food when the prey population falls.
  3. Choose the best explanation: The correct choice is The frog population may decrease because less prey is available..

Frogs that eat grasshoppers may have less food when the prey population falls.

7. QuestionMultiple choice

What could happen if a new predator enters a food web?

Please select an answer first.

Correct answer: C

The correct answer is Some prey populations may decrease and other populations may change as relationships shift..

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: Adding a predator changes feeding relationships and can affect several populations.
  3. Choose the best explanation: The correct choice is Some prey populations may decrease and other populations may change as relationships shift..

Adding a predator changes feeding relationships and can affect several populations.

8. QuestionMultiple choice

Which organism is at the first feeding level in this chain: algae → small fish → large fish?

Please select an answer first.

Correct answer: D

The correct answer is Algae.

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: Algae are producers and provide the starting food energy in the chain.
  3. Choose the best explanation: The correct choice is Algae.

Algae are producers and provide the starting food energy in the chain.

9. QuestionMultiple choice

Which relationship is shown when a bee gets nectar and pollinates a flower?

Please select an answer first.

Correct answer: A

The correct answer is Both organisms can benefit from the interaction..

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: The bee gains food and the flower can receive pollination help.
  3. Choose the best explanation: The correct choice is Both organisms can benefit from the interaction..

The bee gains food and the flower can receive pollination help.

10. QuestionMultiple choice

Why can removing one species affect a food web?

Please select an answer first.

Correct answer: B

The correct answer is Other organisms may lose food, gain more prey, or compete differently for resources..

  1. Identify the ecosystem role: Decide whether the question describes a living part, nonliving factor, feeding relationship, habitat, or population change.
  2. Trace the relationship: Connected feeding relationships allow changes to spread through the web.
  3. Choose the best explanation: The correct choice is Other organisms may lose food, gain more prey, or compete differently for resources..

Connected feeding relationships allow changes to spread through the web.

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Frequently asked questions about Grade 5 Ecosystems and Food Webs

What is a food web?

A food web is a group of connected food chains that shows how energy and food move among organisms in an ecosystem.

Why are producers important?

Producers bring energy into many ecosystems by making food, usually with light energy, and support consumers and decomposers.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 5 Ecosystems and Food Webs questions in total.