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

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One paper per pupil

Set 1 has all 25 in a single PDF. 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.

LessonPrint · 1-LS3-1 · Set 20 · free to copy for classroom use

Answer key — Like Them, Not Exactly Like Them

Set 20. Prints on its own sheet.

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

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.