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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 claim does this record support?
  2. 2. What does this record not tell you?
  3. 3. What do both life cycles have in common?
  4. 4. What stage comes after the caterpillar?
2.Why is a life cycle called a cycle?
  • A.The adult makes young, and they go through the same stages again
  • B.It happens on a bicycle
  • C.Every stage is round
3.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
4.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
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.Which stage of a butterfly's life cycle does most of the eating?
  • A.The egg
  • B.The chrysalis
  • C.The caterpillar
7.Which four things do all life cycles share?
  • A.Birth, growth, reproduction and death
  • B.Eggs, wings, legs and tails
  • C.Flowers, seeds, fruit and leaves

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

Answer key — Caterpillars and Frogspawn

Set 3. Prints on its own sheet.

  1. 1.1. Life cycles are diverse, but all include birth, growth, reproduction and death. 2. It does not tell you how long each stage lasted. 3. Both begin as eggs, grow, produce eggs of their own, and end in death. 4. The chrysalis.
  2. 2.The adult makes young, and they go through the same stages again
  3. 3.Egg, chick, young hen, adult hen
  4. 4.Frogspawn, tadpole, froglet, adult frog
  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.