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Take One Out of the Web is a free printable Grade 5 science worksheet on predicting how a change to one part of a food web affects the rest, aligned to NGSS performance expectation 5-LS2-1. It prints 7 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 13 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Take One Out of the Web

5-LS2-1

NameDate

Read the food web, then answer the questions.

1.Read the record, then answer the questions.

Who Eats What in Our Pond

A food web the class drew from a term of pond-dipping records. WHO EATS WHAT Pondweed and algae are eaten by snails, tadpoles and mayfly larvae. Mayfly larvae are eaten by newts and fish. Snails are eaten by newts and frogs. Tadpoles are eaten by newts and fish. Frogs and fish are eaten by herons. Dead plants, dead animals and droppings are broken down by bacteria and worms in the mud, returning matter to the water.

  1. 1. What does every food chain in this web begin with?
  2. 2. If every snail were taken out, which animals would lose some of their food?
  3. 3. Why do the bacteria and worms matter to the pondweed?
  4. 4. If a disease killed the pondweed and algae, what would happen?
2.A forest fire burns the trees. Which animals lose their food first?
  • A.None, fire does not affect food
  • B.Those that eat the leaves and seeds of the trees
  • C.The animals that eat other animals
3.A farmer sprays a field to kill every insect. What could happen to birds that eat insects?
  • A.They get more food
  • B.They have less food, so fewer survive
  • C.They start eating the spray
4.Gray squirrels were brought into Britain. What happened to the red squirrels?
  • A.They increased
  • B.They declined, partly because the gray squirrels took their food
  • C.They ate the gray squirrels
5.A new road cuts a wood in two. What is one effect on the animals?
  • A.Some can no longer reach food or mates on the other side
  • B.They all get more food
  • C.None at all
6.Ladybirds are released in a greenhouse full of aphids. What happens to the aphids?
  • A.They increase
  • B.They eat the ladybirds
  • C.They fall in number, because ladybirds eat them
7.Why does a web with many kinds of living thing cope better with a change?
  • A.Big webs never change
  • B.More kinds means less food
  • C.If one food runs short, animals can eat something else

LessonPrint · 5-LS2-1 · Set 13 · free to copy for classroom use

Answer key — Take One Out of the Web

Set 13. Prints on its own sheet.

  1. 1.1. Pondweed and algae. 2. The newts and the frogs, which eat snails. 3. They break down dead plants and animals, returning matter to the water that the pondweed can use. 4. The snails, tadpoles and mayfly larvae would lose their food, and then so would the animals that eat them.
  2. 2.Those that eat the leaves and seeds of the trees
  3. 3.They have less food, so fewer survive
  4. 4.They declined, partly because the gray squirrels took their food
  5. 5.Some can no longer reach food or mates on the other side
  6. 6.They fall in number, because ladybirds eat them
  7. 7.If one food runs short, animals can eat something else

Last reviewed 2026-09-05. Aligned to 5-LS2-1 of the Next Generation Science Standards.