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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. What would you expect a beetle's cycle to include?
  2. 2. What do both life cycles have in common?
  3. 3. What claim does this record support?
  4. 4. What stage comes after the caterpillar?
2.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
3.What hatches from a fish's egg?
  • A.A caterpillar
  • B.A tadpole
  • C.A tiny larva that grows into a young fish
4.Why is a life cycle called a cycle?
  • A.It happens on a bicycle
  • B.The adult makes young, and they go through the same stages again
  • C.Every stage is round
5.A kitten is born alive rather than hatching from an egg. Does it still have a life cycle?
  • A.No, cats do not grow
  • B.Yes: birth, growth, reproduction and death
  • C.No, only animals from eggs have one
6.Which stage of a butterfly's life cycle does most of the eating?
  • A.The chrysalis
  • B.The egg
  • C.The caterpillar
7.Which four things do all life cycles share?
  • A.Eggs, wings, legs and tails
  • B.Flowers, seeds, fruit and leaves
  • C.Birth, growth, reproduction and death

LessonPrint · 3-LS1-1 · Set 13 · free to copy for classroom use

Answer key — Caterpillars and Frogspawn

Set 13. Prints on its own sheet.

  1. 1.1. Birth, growth, reproduction and death, with its own stages between. 2. Both begin as eggs, grow, produce eggs of their own, and end in death. 3. Life cycles are diverse, but all include birth, growth, reproduction and death. 4. The chrysalis.
  2. 2.The young frog lives in water and changes shape before it lives on land
  3. 3.A tiny larva that grows into a young fish
  4. 4.The adult makes young, and they go through the same stages again
  5. 5.Yes: birth, growth, reproduction and death
  6. 6.The caterpillar
  7. 7.Birth, growth, reproduction and death

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