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Through, Dimly, or Not at All is a free printable Grade 1 science worksheet on what different materials do to a beam of light, aligned to Common Core standard 1-PS4-3. 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 22 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Through, Dimly, or Not at All

1-PS4-3

NameDate

Sort each material into what it does to light.

1.Sort each one: Light goes straight through or Only a dim glow gets through or No light gets through?

Sort: Tissue paper, Thick card, Clean water in a glass

Light goes straight throughOnly a dim glow gets throughNo light gets through
2.Sort each one: Light goes straight through or Only a dim glow gets through or No light gets through?

Sort: Frosted glass, Clear plastic sheet, A thick book

Light goes straight throughOnly a dim glow gets throughNo light gets through
3.Sort each one: Light goes straight through or Only a dim glow gets through or No light gets through?

Sort: A window pane, A thin white curtain, A wooden door

Light goes straight throughOnly a dim glow gets throughNo light gets through

LessonPrint · 1-PS4-3 · Set 22 · free to copy for classroom use

Answer key — Through, Dimly, or Not at All

Set 22. Prints on its own sheet.

  1. 1.1. Clean water in a glass — Light goes straight through 2. Thick card — No light gets through 3. Tissue paper — Only a dim glow gets through
  2. 2.1. A thick book — No light gets through 2. Clear plastic sheet — Light goes straight through 3. Frosted glass — Only a dim glow gets through
  3. 3.1. A thin white curtain — Only a dim glow gets through 2. A window pane — Light goes straight through 3. A wooden door — No light gets through

More practice for 1-PS4-3

Test what different materials do to a beam of light.

Teaching this next? Through, Dimly, or Not at All is the 50-minute plan for it, with the misconceptions to expect.

All Grade 1 worksheets

Last reviewed 2026-09-05. Aligned to 1-PS4-3 of the Next Generation Science Standards.