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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 stage comes after the caterpillar?
  2. 2. What stage comes after the tadpole with legs?
  3. 3. What does this record not tell you?
  4. 4. Why are the two cycles different in the middle?
2.What do the life cycles of a chicken, a frog and a fish all have in common?
  • A.Each has a chrysalis
  • B.Each begins as an egg, grows, and makes young of its own
  • C.Each is born alive
3.What hatches from a fish's egg?
  • A.A caterpillar
  • B.A tiny larva that grows into a young fish
  • C.A tadpole
4.A kitten is born alive rather than hatching from an egg. Does it still have a life cycle?
  • A.No, only animals from eggs have one
  • B.No, cats do not grow
  • C.Yes: birth, growth, reproduction and death
5.Which stage of a butterfly's life cycle does most of the eating?
  • A.The chrysalis
  • B.The caterpillar
  • C.The egg
6.What is the right order for a chicken's life cycle?
  • A.Egg, chick, young hen, adult hen
  • B.Chick, egg, adult hen, young hen
  • C.Adult hen, chick, egg, young hen
7.What is the right order for a frog's life cycle?
  • A.Tadpole, frogspawn, adult frog, froglet
  • B.Froglet, tadpole, frogspawn, adult frog
  • C.Frogspawn, tadpole, froglet, adult frog

LessonPrint · 3-LS1-1 · Set 7 · free to copy for classroom use

Answer key — Caterpillars and Frogspawn

Set 7. Prints on its own sheet.

  1. 1.1. The chrysalis. 2. The froglet. 3. It does not tell you how long each stage lasted. 4. Different organisms have different stages between birth and adult.
  2. 2.Each begins as an egg, grows, and makes young of its own
  3. 3.A tiny larva that grows into a young fish
  4. 4.Yes: birth, growth, reproduction and death
  5. 5.The caterpillar
  6. 6.Egg, chick, young hen, adult hen
  7. 7.Frogspawn, tadpole, froglet, adult frog

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