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Like Them, Not Exactly Like Them is a free printable Grade 1 science worksheet on evidence that young are like their parents but not identical, aligned to Common Core standard 1-LS3-1. 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 pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 1 of 25 · the same problems every time you open this link.

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All 25 sets ask different questions.

Like Them, Not Exactly Like Them

1-LS3-1

NameDate

Sort each one into like or not the same.

1.Sort each one: Like the parent or Not the same as the parent?

Sort: A kitten has the same ear shape, A duckling has the same beak shape, The foal has a white blaze its mother has not, The puppy has one white paw its mother has not

Like the parentNot the same as the parent
2.Sort each one: Like the parent or Not the same as the parent?

Sort: A lamb has wool like the ewe, The kitten is striped where its mother is plain, A puppy is the same shape as its mother, The seedling is much shorter than the tree

Like the parentNot the same as the parent
3.Sort each one: Like the parent or Not the same as the parent?

Sort: The lamb's wool is a paler colour, The duckling is yellow, its mother brown, A foal has long legs like its mother, An oak seedling has oak-shaped leaves

Like the parentNot the same as the parent

LessonPrint · 1-LS3-1 · Set 1 · free to copy for classroom use

Answer key — Like Them, Not Exactly Like Them

Set 1. Prints on its own sheet.

  1. 1.1. A duckling has the same beak shape — Like the parent 2. A kitten has the same ear shape — Like the parent 3. The foal has a white blaze its mother has not — Not the same as the parent 4. The puppy has one white paw its mother has not — Not the same as the parent
  2. 2.1. A lamb has wool like the ewe — Like the parent 2. A puppy is the same shape as its mother — Like the parent 3. The kitten is striped where its mother is plain — Not the same as the parent 4. The seedling is much shorter than the tree — Not the same as the parent
  3. 3.1. A foal has long legs like its mother — Like the parent 2. An oak seedling has oak-shaped leaves — Like the parent 3. The duckling is yellow, its mother brown — Not the same as the parent 4. The lamb's wool is a paler colour — Not the same as the parent

Questions about Like Them, Not Exactly Like Them

What does the Like Them, Not Exactly Like Them worksheet cover?

It practises evidence that young are like their parents but not identical — 3 questions for Grade 1, all on Common Core 1-LS3-1: Show that young plants and animals resemble their parents without matching them. The instruction to pupils is “Sort each one into like or not the same”, and the answer key follows on the next sheet.

Which Common Core standard does Like Them, Not Exactly Like Them practise?

1-LS3-1 — 1-LS3-1, in the Life Science domain for Grade 1. The published standard reads: “Make observations to construct an evidence-based account that young plants and animals are like, but not exactly like, their parents.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Like Them, Not Exactly Like Them is written for Grade 1, typically ages 6-7. It is one of the sheets on 1-LS3-1, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Like Them, Not Exactly Like Them come with an answer key?

Yes. All 3 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 Like Them, Not Exactly Like Them can I print?

25 — one per pupil, 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 Like Them, Not Exactly Like Them free to print and photocopy?

Yes. Like Them, Not Exactly Like Them, 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.

Is there a lesson plan to teach 1-LS3-1?

Yes — “Like Them, Not Exactly Like Them” is a 50-minute Grade 1 plan for 1-LS3-1, timed section by section, with the misconceptions to expect and an exit ticket. Like Them, Not Exactly Like Them is the practice that follows it.

More practice for 1-LS3-1

Show that young plants and animals resemble their parents without matching them.

Teaching this next? Like Them, Not Exactly Like Them is the 50-minute plan for it, with the misconceptions to expect.

All Grade 1 worksheets

Last reviewed 2026-09-05. Aligned to 1-LS3-1 of the Next Generation Science Standards.