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

LessonPrint · 4-PS4-2 · Set 14 · free to copy for classroom use

Answer key — Around the Corner With Two Mirrors

Set 14. Prints on its own sheet.

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

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