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Food Webs and Energy Flow
Grade 5 - Science - Building Confidence
Worksheet 1
1In a garden food web, which organism is the producer?
2Which energy path fits the pond food web?
3What role do decomposers such as bacteria have in the pond ecosystem?
4If sea urchins decrease in the kelp forest, what is a likely effect?
5Which organism gets energy by eating kelp?
6In a kelp forest food web, which organism is the producer?
7Which energy path fits the kelp forest food web?
8What role do decomposers such as marine bacteria have in the kelp forest ecosystem?
9If rabbits decrease in the meadow, what is a likely effect?
10Which organism gets energy by eating oak tree?
About this worksheet
Food webs and energy flow show how matter and energy move among producers, consumers, predators, and decomposers asks fifth graders to connect a model, data table, or observation with a scientific explanation. Students may memorize organism names but miss the direction of energy transfer or the way a change in one population affects other parts of the web. This worksheet keeps each question tied to the named science idea, so students cannot answer by eliminating vocabulary from a different unit. Students identify roles in a food web, trace energy from the Sun to producers and consumers, predict effects of population changes, and explain the decomposer role. Support versions use familiar examples and direct observations. Standard and challenge versions add closer distractors, multi-step evidence, and model-based reasoning. Ask your child to point to the measurement, diagram, or cause-and-effect clue before choosing. If an answer sounds scientific but does not explain the evidence in the prompt, it is probably a distractor.
What your child will learn
Trace energy flow
Identify producers
Identify consumers
Predict web effects
Worked example
In a meadow, energy can flow from the Sun to grass to rabbits to hawks.
Common mistake
Reading food-web arrows backward and saying the predator gives energy to its prey.
Helpful hint
Follow the arrow from food source to the organism that gets energy.