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New Substance, or Not? is a free printable Grade 5 science worksheet on investigating whether mixing substances makes new ones, aligned to Common Core standard 5-PS1-4. 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 11 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.

New Substance, or Not?

5-PS1-4

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LessonPrint · 5-PS1-4 · Set 11 · free to copy for classroom use

Answer key — New Substance, or Not?

Set 11. Prints on its own sheet.

  1. 1.1. Bread dough baking into a loaf — A new substance formed 2. Copper turning green in the rain — A new substance formed 3. Ice melting into water — No new substance 4. Sugar dissolving in tea — No new substance
  2. 2.1. Iron filings pulled out of sand with a magnet — No new substance 2. Iron left damp until it rusts — A new substance formed 3. Milk thickening into lumps with lemon juice — A new substance formed 4. Sand stirred into water and settling — No new substance
  3. 3.1. A candle wick burning — A new substance formed 2. Salt dissolved and then recovered by drying — No new substance 3. Steam condensing back into water — No new substance 4. Vinegar and baking soda fizzing — A new substance formed

More practice for 5-PS1-4

Test whether mixing substances makes a new one.

Teaching this next? New Substance, or Not? is the 60-minute plan for it, with the misconceptions to expect.

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Last reviewed 2026-09-05. Aligned to 5-PS1-4 of the Next Generation Science Standards.