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Shallows, Open Sea, Deep Dark is a free printable Grade 3 science worksheet on arguing which ocean habitats suit a sea organism and which do not, aligned to NGSS performance expectation 3-LS4-3. 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 25 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.

Shallows, Open Sea, Deep Dark

3-LS4-3

NameDate

Sort each one into how well it would survive there.

1.Sort each one: Survives well here or Survives less well here or Cannot survive here?

Sort: A clownfish on a reef with no anemones to hide in, Kelp on the floor of the deep dark sea, A crab in a rock pool

Survives well hereSurvives less well hereCannot survive here
2.Sort each one: Survives well here or Survives less well here or Cannot survive here?

Sort: A starfish left on a hot dry beach, Coral in cloudy water near a muddy river mouth, Kelp on rocks in shallow sunlit water

Survives well hereSurvives less well hereCannot survive here
3.Sort each one: Survives well here or Survives less well here or Cannot survive here?

Sort: Kelp in cloudy water where little light reaches, A goldfish in salty sea water, An anglerfish in the deep dark sea

Survives well hereSurvives less well hereCannot survive here

LessonPrint · 3-LS4-3 · Set 25 · free to copy for classroom use

Answer key — Shallows, Open Sea, Deep Dark

Set 25. Prints on its own sheet.

  1. 1.1. A clownfish on a reef with no anemones to hide in — Survives less well here 2. A crab in a rock pool — Survives well here 3. Kelp on the floor of the deep dark sea — Cannot survive here
  2. 2.1. A starfish left on a hot dry beach — Cannot survive here 2. Coral in cloudy water near a muddy river mouth — Survives less well here 3. Kelp on rocks in shallow sunlit water — Survives well here
  3. 3.1. A goldfish in salty sea water — Cannot survive here 2. An anglerfish in the deep dark sea — Survives well here 3. Kelp in cloudy water where little light reaches — Survives less well here

Last reviewed 2026-09-05. Aligned to 3-LS4-3 of the Next Generation Science Standards.