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What Each Part Is For is a free printable Grade 1 science worksheet on how plants and animals use their outside parts to survive and grow, aligned to NGSS performance expectation 1-LS1-1. It prints 2 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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All 25 sets ask different questions.

What Each Part Is For

1-LS1-1

NameDate

Draw a line from each part to what it does.

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

Answer key — What Each Part Is For

Set 1. Prints on its own sheet.

  1. 1.1. A fish's fins — B (Help it steer and stay upright in the water) 2. A turtle's shell — C (A hard home it can pull its head into) 3. A giraffe's long neck — D (Reach leaves high up in the trees) 4. A plant's flowers — A (Make the seeds that grow into new plants)
  2. 2.1. An elephant's trunk — C (Pick up food and suck up water) 2. An eagle's sharp claws — B (Grip and carry the food it catches) 3. A plant's leaves — D (Catch the sunlight the plant needs) 4. A rabbit's long ears — A (Hear danger coming from far away)

Questions about What Each Part Is For

What does the What Each Part Is For worksheet cover?

It practices how plants and animals use their outside parts to survive and grow — 2 questions for Grade 1, all on NGSS 1-LS1-1: Solve a human problem by copying a body part that helps a plant or animal survive. The instruction to students is “Draw a line from each part to what it does”, and the answer key follows on the next sheet.

Which NGSS performance expectation does What Each Part Is For practice?

1-LS1-1, under Life Science for Grade 1. The published performance expectation reads: “Use materials to design a solution to a human problem by mimicking how plants and/or animals use their external parts to help them survive, grow, and meet their needs.” The worksheet assesses that performance expectation rather than a paraphrase of it.

What age or grade is this worksheet for?

What Each Part Is For is written for Grade 1, typically ages 6-7. It is one of the sheets on 1-LS1-1, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does What Each Part Is For come with an answer key?

Yes. All 2 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.

How many different versions of What Each Part Is For can I print?

25 — one per student, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.

Is What Each Part Is For free to print and photocopy?

Yes. What Each Part Is For, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.

More practice for 1-LS1-1

Solve a human problem by copying a body part that helps a plant or animal survive.

All Grade 1 worksheets

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