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Around the Corner With Two Mirrors is a free printable Grade 4 science worksheet on using a mirror test to model how reflected light reaches the eye, aligned to NGSS performance expectation 4-PS4-2. It prints 7 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 8 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.

Around the Corner With Two Mirrors

4-PS4-2

NameDate

Read the record, then answer the questions.

1.Read the record, then answer the questions.

Around the Corner With Two Mirrors

What the class saw when a flashlight beam was aimed into a tube with two angled mirrors. THE PERISCOPE TUBE Flashlight on, both mirrors in place: the card at the far end was lit Flashlight on, top mirror removed: the card was not lit Flashlight off, both mirrors in place: nothing could be seen A hand held in the beam: the card went dark The card never moved.

  1. 1. Why could nothing be seen with the flashlight off?
  2. 2. What happened when a hand was held in the beam?
  3. 3. What does this record not tell you?
  4. 4. What claim does this record support?
2.In a dark room with no light at all, you cannot see a white cup. Why?
  • A.The cup is too far away
  • B.White cups are invisible
  • C.No light is reflecting off it into your eyes
3.A cyclist's reflector shines in a car's headlights. Why?
  • A.It is hot
  • B.It reflects the headlight beam back toward the driver
  • C.It has its own battery
4.What does a mirror do to light that hits it?
  • A.It reflects it off in a new direction
  • B.It soaks it up
  • C.It makes more light
5.A book makes no light of its own. Why can you see it?
  • A.Light from a lamp reflects off it into your eyes
  • B.Your eyes send light to it
  • C.Books glow faintly
6.A still pond shows a clear reflection, but a rippled one does not. Why?
  • A.Ripples make the water darker
  • B.Smooth water reflects light evenly, and ripples send it off in many directions
  • C.Still water is a mirror made of glass
7.Which surface reflects light most like a mirror?
  • A.Rough tree bark
  • B.A woolly sweater
  • C.Smooth shiny metal

LessonPrint · 4-PS4-2 · Set 8 · free to copy for classroom use

Answer key — Around the Corner With Two Mirrors

Set 8. Prints on its own sheet.

  1. 1.1. No light traveled to the card and back to the eye. 2. The card went dark. 3. It does not tell you how bright the card was each time. 4. Light travels a path, reflects off mirrors, and must enter the eye for something to be seen.
  2. 2.No light is reflecting off it into your eyes
  3. 3.It reflects the headlight beam back toward the driver
  4. 4.It reflects it off in a new direction
  5. 5.Light from a lamp reflects off it into your eyes
  6. 6.Smooth water reflects light evenly, and ripples send it off in many directions
  7. 7.Smooth shiny metal

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