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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.

Set 14 of 25 · the same problems every time you open this link.

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

LessonPrint · 3-LS1-1 · Set 14 · free to copy for classroom use

Answer key — Caterpillars and Frogspawn

Set 14. Prints on its own sheet.

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

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