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Complete or Incomplete? is a free printable Grade 3 science worksheet on comparing insect life cycles with and without a pupa stage, aligned to NGSS performance expectation 3-LS1-1. It prints 3 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 15 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Complete or Incomplete?

3-LS1-1

NameDate

Sort each insect into the right life cycle.

1.Sort each one: Complete: egg, larva, pupa, adult or Incomplete: egg, nymph, adult?

Sort: A damselfly, A stick insect, A beetle, A mosquito

Complete: egg, larva, pupa, adultIncomplete: egg, nymph, adult
2.Sort each one: Complete: egg, larva, pupa, adult or Incomplete: egg, nymph, adult?

Sort: A housefly, A grasshopper, A moth, A dragonfly

Complete: egg, larva, pupa, adultIncomplete: egg, nymph, adult
3.Sort each one: Complete: egg, larva, pupa, adult or Incomplete: egg, nymph, adult?

Sort: A cockroach, An ant, A butterfly, A praying mantis

Complete: egg, larva, pupa, adultIncomplete: egg, nymph, adult

LessonPrint · 3-LS1-1 · Set 15 · free to copy for classroom use

Answer key — Complete or Incomplete?

Set 15. Prints on its own sheet.

  1. 1.1. A beetle — Complete: egg, larva, pupa, adult 2. A damselfly — Incomplete: egg, nymph, adult 3. A mosquito — Complete: egg, larva, pupa, adult 4. A stick insect — Incomplete: egg, nymph, adult
  2. 2.1. A dragonfly — Incomplete: egg, nymph, adult 2. A grasshopper — Incomplete: egg, nymph, adult 3. A housefly — Complete: egg, larva, pupa, adult 4. A moth — Complete: egg, larva, pupa, adult
  3. 3.1. A butterfly — Complete: egg, larva, pupa, adult 2. A cockroach — Incomplete: egg, nymph, adult 3. A praying mantis — Incomplete: egg, nymph, adult 4. An ant — Complete: egg, larva, pupa, adult

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