What are Solids? Worksheet
This what are solids? worksheet has 3rd grade students sort eight materials into solid and not-solid columns and find both in four sentences, with an answer key included for fast checking.
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About this resource
Description
Everything a child can touch is made of matter, and the first state of matter a young scientist learns to name is the solid. This what are solids? worksheet gives third graders a clear, hands-on way to tell a solid apart from everything else: a solid keeps its own shape and takes up its own space, while a liquid spreads out to fit whatever container it is poured into and a gas fills the whole room.
The page works in two steps. First students sort eight everyday materials into a Solid column and a Not a Solid column, which forces them to picture each one and ask whether it would keep its shape on a table. Then they read four short sentences that each name one solid and one thing that is not a solid, and write both words on the lines below. That second part is the harder and more useful half, because the two things sit side by side in the same sentence, exactly the way they do in the real world: steam rising from a metal pan, air inside a balloon, soup around a wooden spoon. Print it for a matter unit, a science center, homework, or a quick review before a states of matter quiz.
What’s Included
- A one-page printable worksheet in PDF format, ready to print
- An eight-word box to sort into Solid and Not a Solid columns
- Four sentences that each pair one solid with one non-solid
- Two labeled writing lines under every sentence
- A full answer key on the second page
Why This Helps Kids
- It builds the core idea of the matter unit: a solid keeps its own shape.
- It moves students from naming a solid to finding one inside a sentence, which is how science questions are actually asked on a test.
- It uses ordinary classroom and kitchen objects, so students can check every answer against something they have held.
Ideas for Teachers and Parents
Before handing out this what are solids? worksheet, pour water from one cup into a differently shaped one and set a book beside it, then ask which object changed shape and why. As students finish the sort, ask them to defend one word out loud, especially honey, which is thick and slow but still takes the shape of its jar. Turn the second half into a hunt: give partners two minutes to find a solid and a non-solid in the room and say a sentence that names both. This 3rd grade matter worksheet also pairs well with a freezing and melting demonstration, since watching water become ice makes the difference between the states impossible to forget.
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