What does flat or solid mean on these sheets?

Flat shapes like circles and squares lie on the paper; solid shapes like balls and boxes take up space. Some kindergarten problems just ask your child to circle which kind the picture shows.

Which solids does kindergarten cover?

Cube, sphere, cone, and cylinder: the four named in the kindergarten standards. Each drawing comes with three names, and your child circles the right one.

Kindergarten identifying 3d shapes

Kindergarten identifying 3d shapes worksheets

Kindergarten 3D shape worksheets mix two kinds of problems: most show a solid (cube, sphere, cone, or cylinder) with three names to circle, and the rest show a shape and ask whether it is flat or solid.

Free printable PDF worksheet, aligned to Common Core K.G.A.2, K.G.A.3.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of problems you'll get

Name the solid shapes. Tell whether the other shapes are flat or solid.

Which solid is shaped like a ball?
Answer: A sphere.

Most problems on this sheet sit beside a picture, model or diagram, so this is the worked example the sheet itself prints. The answer key on page two prints the answer under every problem.

Every print pulls a fresh set of problems at this level, so a make-up test or a second sibling never gets the same sheet.

What's on a kindergarten sheet

Identifying 3d shapes. Name the solid shapes. Tell whether the other shapes are flat or solid. 8 problems per page.

Every version prints on US Letter or A4, with its answer key after the problems.

How to teach this

Grab real objects first (a ball, a can, a party hat, a tissue box) and let your child match each drawing to something they can hold. For the flat-or-solid items, ask, could it hold cereal, or would everything fall off? Solids take up space; flat shapes just cover it.

Watch for: Kids call every box a cube. A cube's faces are all squares, so a longer box is a rectangular prism, not a cube. Kids name solids by their flat faces, calling a cylinder a circle. The circle is just one face of it; the whole solid is a cylinder.

Common questions about kindergarten identifying 3d shapes

What does flat or solid mean on these sheets?: Flat shapes like circles and squares lie on the paper; solid shapes like balls and boxes take up space. Some kindergarten problems just ask your child to circle which kind the picture shows.
Which solids does kindergarten cover?: Cube, sphere, cone, and cylinder: the four named in the kindergarten standards. Each drawing comes with three names, and your child circles the right one.

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Aligned to Common Core K.G.A.2, K.G.A.3. Reviewed by the One more sheet team. Content version 240, updated September 2026.

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