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Caterpillars and Frogspawn is a free printable Grade 3 science worksheet on using eight weeks of observations to compare two animal life cycles, aligned to NGSS performance expectation 3-LS1-1. 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.

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Caterpillars and Frogspawn

3-LS1-1

NameDate

Read the record, then answer the questions.

1.Read the record, then answer the questions.

Two Life Cycles Watched

Observations the class kept of caterpillars and frogspawn over eight weeks. WHAT WE WATCHED Butterfly: egg, caterpillar, chrysalis, adult, eggs again Frog: egg, tadpole, tadpole with legs, froglet, adult, eggs again Both started as eggs. Both grew, then produced eggs of their own. Neither adult lived past the end of the year.

  1. 1. Why are the two cycles different in the middle?
  2. 2. What does this record not tell you?
  3. 3. What would you expect a beetle's cycle to include?
  4. 4. What claim does this record support?
2.What hatches from a fish's egg?
  • A.A tadpole
  • B.A tiny larva that grows into a young fish
  • C.A caterpillar
3.How is a frog's life cycle different from a chicken's?
  • A.The chicken changes shape completely
  • B.The frog has no eggs
  • C.The young frog lives in water and changes shape before it lives on land
4.Which four things do all life cycles share?
  • A.Flowers, seeds, fruit and leaves
  • B.Eggs, wings, legs and tails
  • C.Birth, growth, reproduction and death
5.Why is a life cycle called a cycle?
  • A.The adult makes young, and they go through the same stages again
  • B.Every stage is round
  • C.It happens on a bicycle
6.What is the right order for a chicken's life cycle?
  • A.Chick, egg, adult hen, young hen
  • B.Adult hen, chick, egg, young hen
  • C.Egg, chick, young hen, adult hen
7.Which stage of a butterfly's life cycle does most of the eating?
  • A.The caterpillar
  • B.The chrysalis
  • C.The egg

LessonPrint · 3-LS1-1 · Set 11 · free to copy for classroom use

Answer key — Caterpillars and Frogspawn

Set 11. Prints on its own sheet.

  1. 1.1. Different organisms have different stages between birth and adult. 2. It does not tell you how long each stage lasted. 3. Birth, growth, reproduction and death, with its own stages between. 4. Life cycles are diverse, but all include birth, growth, reproduction and death.
  2. 2.A tiny larva that grows into a young fish
  3. 3.The young frog lives in water and changes shape before it lives on land
  4. 4.Birth, growth, reproduction and death
  5. 5.The adult makes young, and they go through the same stages again
  6. 6.Egg, chick, young hen, adult hen
  7. 7.The caterpillar

Last reviewed 2026-09-05. Aligned to 3-LS1-1 of the Next Generation Science Standards.