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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 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.

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. What claim does this record support?
  2. 2. What does this record not tell you?
  3. 3. What would happen with a third mirror added at an angle?
  4. 4. What happened when a hand was held in the beam?
2.Which surface reflects light most like a mirror?
  • A.A woolly sweater
  • B.Smooth shiny metal
  • C.Rough tree bark
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.In a dark room with no light at all, you cannot see a white cup. Why?
  • A.White cups are invisible
  • B.The cup is too far away
  • C.No light is reflecting off it into your eyes
5.What must happen for you to see the moon at night?
  • A.Sunlight must reflect off the moon and reach your eyes
  • B.Your eyes must shine on it
  • C.The moon must make its own light
6.A still pond shows a clear reflection, but a rippled one does not. Why?
  • A.Smooth water reflects light evenly, and ripples send it off in many directions
  • B.Still water is a mirror made of glass
  • C.Ripples make the water darker
7.What does a mirror do to light that hits it?
  • A.It makes more light
  • B.It soaks it up
  • C.It reflects it off in a new direction

LessonPrint · 4-PS4-2 · Set 22 · free to copy for classroom use

Answer key — Around the Corner With Two Mirrors

Set 22. Prints on its own sheet.

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

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