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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 24 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. If a disease killed the pondweed and algae, what would happen?
  2. 2. What does every food chain in this web begin with?
  3. 3. What claim does this web support?
  4. 4. If every snail were taken out, which animals would lose some of their food?
2.Ladybirds are released in a greenhouse full of aphids. What happens to the aphids?
  • A.They fall in number, because ladybirds eat them
  • B.They increase
  • C.They eat the ladybirds
3.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
4.The rabbits in that field then increase. What happens to the grass?
  • A.There is less of it, because more rabbits are eating it
  • B.There is more of it
  • C.It is not affected
5.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
6.A farmer sprays a field to kill every insect. What could happen to birds that eat insects?
  • A.They have less food, so fewer survive
  • B.They start eating the spray
  • C.They get more food
7.Too many deer graze in a wood. What happens to the young trees?
  • A.Many are eaten before they can grow tall
  • B.Nothing happens to them
  • C.They grow faster

LessonPrint · 5-LS2-1 · Set 24 · free to copy for classroom use

Answer key — Take One Out of the Web

Set 24. Prints on its own sheet.

  1. 1.1. The snails, tadpoles and mayfly larvae would lose their food, and then so would the animals that eat them. 2. Pondweed and algae. 3. Matter moves from the pondweed and algae through the animals to the bacteria and worms, and back to the water. 4. The newts and the frogs, which eat snails.
  2. 2.They fall in number, because ladybirds eat them
  3. 3.If one food runs short, animals can eat something else
  4. 4.There is less of it, because more rabbits are eating it
  5. 5.They declined, partly because the gray squirrels took their food
  6. 6.They have less food, so fewer survive
  7. 7.Many are eaten before they can grow tall

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