Solid or Liquid? is a free printable Grade 2 science worksheet on classifying materials as solid or liquid by whether they keep their shape, aligned to NGSS performance expectation 2-PS1-1. 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 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 1 of 25 · the same problems every time you open this link.
1.Sort each one: Solid: keeps its own shape or Liquid: takes the shape of its container?
Sort: Runny honey, A wooden block, A bar of soap, Vinegar
Solid: keeps its own shapeLiquid: takes the shape of its container
2.Sort each one: Solid: keeps its own shape or Liquid: takes the shape of its container?
Sort: An ice cube, Cooking oil, A crayon, Milk
Solid: keeps its own shapeLiquid: takes the shape of its container
3.Sort each one: Solid: keeps its own shape or Liquid: takes the shape of its container?
Sort: Rainwater in a bucket, Orange juice, A metal spoon, A pencil
Solid: keeps its own shapeLiquid: takes the shape of its container
LessonPrint · 2-PS1-1 · Set 1 · free to copy for classroom use
Answer key — Solid or Liquid?
Set 1. Prints on its own sheet.
1.1. A bar of soap — Solid: keeps its own shape 2. A wooden block — Solid: keeps its own shape 3. Runny honey — Liquid: takes the shape of its container 4. Vinegar — Liquid: takes the shape of its container
2.1. A crayon — Solid: keeps its own shape 2. An ice cube — Solid: keeps its own shape 3. Cooking oil — Liquid: takes the shape of its container 4. Milk — Liquid: takes the shape of its container
3.1. A metal spoon — Solid: keeps its own shape 2. A pencil — Solid: keeps its own shape 3. Orange juice — Liquid: takes the shape of its container 4. Rainwater in a bucket — Liquid: takes the shape of its container
Questions about Solid or Liquid?
What does the Solid or Liquid? worksheet cover?
It practices classifying materials as solid or liquid by whether they keep their shape — 3 questions for Grade 2, all on NGSS 2-PS1-1: Sort materials by what you can observe about them. The instruction to students is “Sort each one into solid or liquid”, and the answer key follows on the next sheet.
Which NGSS performance expectation does Solid or Liquid? practice?
2-PS1-1, under Physical Science for Grade 2. The published performance expectation reads: “Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.” The worksheet assesses that performance expectation rather than a paraphrase of it.
What age or grade is this worksheet for?
Solid or Liquid? is written for Grade 2, typically ages 7-8. It is one of the sheets on 2-PS1-1, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.
Does Solid or Liquid? 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 Solid or Liquid? 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 Solid or Liquid? free to print and photocopy?
Yes. Solid or Liquid?, 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 2-PS1-1
Sort materials by what you can observe about them.