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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 NGSS performance expectation 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 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 23 of 25 · the same problems every time you open this link.

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One paper per student

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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: Tracing paper, Clear plastic sheet, A metal can

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: A window pane, A wooden door, Frosted glass

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 clear bottle, A thin white curtain, Thick cardboard

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

LessonPrint · 1-PS4-3 · Set 23 · free to copy for classroom use

Answer key — Through, Dimly, or Not at All

Set 23. Prints on its own sheet.

  1. 1.1. A metal can — No light gets through 2. Clear plastic sheet — Light goes straight through 3. Tracing paper — Only a dim glow gets through
  2. 2.1. A window pane — Light goes straight through 2. A wooden door — No light gets through 3. Frosted glass — Only a dim glow gets through
  3. 3.1. A clear bottle — Light goes straight through 2. A thin white curtain — Only a dim glow gets through 3. Thick cardboard — 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.