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The Path Light Takes is a free printable Grade 4 science worksheet on modelling how reflected light entering the eye lets objects be seen, aligned to Common Core standard 4-PS4-2. It prints 2 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 5 of 25 · the same problems every time you open this link.

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One paper per pupil

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

The Path Light Takes

4-PS4-2

NameDate

Number the steps from 1 to 4.

1.Put the periscope light path in order.
  • Light reflects off the top mirror
  • Light travels down the tube
  • Light enters the top opening
  • Light reflects off the lower mirror into the eye
2.Put the steps in order for seeing a red apple.
  • White light falls on the apple
  • The apple reflects mostly red light
  • The eye receives it and the apple looks red
  • The reflected light travels to the eye

LessonPrint · 4-PS4-2 · Set 5 · free to copy for classroom use

Answer key — The Path Light Takes

Set 5. Prints on its own sheet.

  1. 1.Correct order: 3, 1, 2, 4
  2. 2.Correct order: 1, 2, 4, 3

More practice for 4-PS4-2

Model how light bouncing off a thing and into your eye lets you see it.

Teaching this next? The Path Light Takes is the 55-minute plan for it, with the misconceptions to expect.

All Grade 4 worksheets

Last reviewed 2026-09-05. Aligned to 4-PS4-2 of the Next Generation Science Standards.