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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 157 · 40 questions
TalentJR

What you do (Bounce, bounce, see): 1. An adult cuts a window near the top on one side of the carton and near the bottom on the other. 2. Tape one mirror at 45° behind each window, the two mirrors facing each other. 3. Look into the bottom window and adjust the mirrors until the view is clear. 4. Peep over a table or wall — never point it at the Sun.

NameDateTime takenScore ___ / 40
  1. 1.🔭 How many mirrors does a simple periscope use?
  2. 2.True or false: a mirror reflects light poorly. (a) True (b) False
  3. 3.True or false: black cloth reflects light well. (a) False (b) True
  4. 4.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) black cloth (d) a mirror
  5. 5.True or false: vinegar is not needed for the periscope. (a) False (b) True
  6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we measure it (b) we change it (c) we keep it the same
  7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) the angle of the mirrors (c) how clear the view is
  8. 8.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a pilot in a plane (d) a submarine crew
  9. 9.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a battery cell (d) two small mirrors
  10. 10.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see in the dark (d) see over a wall
  11. 11.True or false: dark soil reflects light well. (a) False (b) True
  12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the object we look at (c) the angle of the mirrors (d) the same carton
  13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a dull brick
  15. 15.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) much bigger (d) upside down only
  16. 16.True or false: dark soil reflects light poorly. (a) False (b) True
  17. 17.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) sticky tape (d) a balloon
  18. 18.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
  19. 19.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) still clear water (d) aluminium foil
  20. 20.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) only darkness (d) a brighter view
  21. 21.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) a magnet (d) a pencil
  22. 22.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
  23. 23.True or false: a dull brick reflects light poorly. (a) False (b) True
  24. 24.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
  25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) the object we look at (c) how clear the view is
  26. 26.True or false: two small mirrors is needed for the periscope. (a) False (b) True
  27. 27.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
  28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) vinegar (c) an empty juice carton (d) sticky tape
  29. 29.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) a dull brick (d) aluminium foil
  30. 30.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) big wall mirrors (d) plastic safety mirrors
  31. 31.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
  32. 32.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) aluminium foil (d) dark soil
  33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we change it (b) we measure it (c) we keep it the same
  34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
  35. 35.True or false: aluminium foil reflects light poorly. (a) True (b) False
  36. 36.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
  37. 37.True or false: a balloon is not needed for the periscope. (a) True (b) False
  38. 38.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a battery cell (c) turmeric powder (d) vinegar
  39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
  40. 40.🔭 How many times does light bounce off a mirror in a simple periscope?

Answer key

  1. 2
  2. False
  3. False
  4. black cloth
  5. True
  6. we measure it
  7. the same light
  8. a submarine crew
  9. two small mirrors
  10. see over a wall
  11. False
  12. how clear the view is
  13. False
  14. a dull brick
  15. flipped left to right
  16. True
  17. a balloon
  18. needed
  19. black cloth
  20. only darkness
  21. a pencil
  22. not needed
  23. True
  24. needed
  25. the object we look at
  26. True
  27. a grown-up
  28. vinegar
  29. a dull brick
  30. plastic safety mirrors
  31. not needed
  32. dark soil
  33. we keep it the same
  34. True
  35. False
  36. not needed
  37. True
  38. an empty juice carton
  39. True
  40. 2

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