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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 stage comes after the caterpillar?
  3. 3. What stage comes after the tadpole with legs?
  4. 4. Why are the two cycles different in the middle?
2.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.Yes: birth, growth, reproduction and death
  • C.No, cats do not grow
3.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 turning into a fish
  • C.It is dying
4.What is the right order for a frog's life cycle?
  • A.Froglet, tadpole, frogspawn, adult frog
  • B.Frogspawn, tadpole, froglet, adult frog
  • C.Tadpole, frogspawn, adult frog, froglet
5.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
6.Which stage of a butterfly's life cycle does most of the eating?
  • A.The egg
  • B.The caterpillar
  • C.The chrysalis
7.Which four things do all life cycles share?
  • A.Eggs, wings, legs and tails
  • B.Birth, growth, reproduction and death
  • C.Flowers, seeds, fruit and leaves

LessonPrint · 3-LS1-1 · Set 20 · free to copy for classroom use

Answer key — Caterpillars and Frogspawn

Set 20. Prints on its own sheet.

  1. 1.1. Birth, growth, reproduction and death, with its own stages between. 2. The chrysalis. 3. The froglet. 4. Different organisms have different stages between birth and adult.
  2. 2.Yes: birth, growth, reproduction and death
  3. 3.It is changing into a frog
  4. 4.Frogspawn, tadpole, froglet, adult frog
  5. 5.Egg, chick, young hen, adult hen
  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.