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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 615 · 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.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
  2. 2.True or false: a battery cell is needed for the periscope. (a) False (b) True
  3. 3.🔭 How many times does light bounce off a mirror in a simple periscope?
  4. 4.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) a ruler (d) a balloon
  5. 5.🔭 How many mirrors does a simple periscope use?
  6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a pencil (d) yeast
  7. 7.True or false: vinegar is needed for the periscope. (a) True (b) False
  8. 8.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
  9. 9.⚖️ 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
  10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) an empty juice carton (d) a pencil
  11. 11.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) two small mirrors (d) a magnet
  12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
  13. 13.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) loose glass panes (d) plastic safety mirrors
  14. 14.True or false: a ruler is not needed for the periscope. (a) True (b) False
  15. 15.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 10 degrees (d) 180 degrees
  16. 16.True or false: a mirror reflects light poorly. (a) True (b) False
  17. 17.⚖️ 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
  18. 18.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) a dull brick (d) a rough wooden board
  19. 19.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) sticky tape (c) a pencil (d) an empty juice carton
  20. 20.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) still clear water (d) dark soil
  21. 21.True or false: still clear water reflects light well. (a) True (b) False
  22. 22.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  23. 23.🧺 Which of these is needed for the periscope? (a) yeast (b) a balloon (c) vinegar (d) a pencil
  24. 24.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
  25. 25.True or false: dark soil reflects light well. (a) False (b) True
  26. 26.True or false: a mirror reflects light well. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) black cloth (d) a mirror
  28. 28.🧺 Which of these is needed for the periscope? (a) a magnet (b) turmeric powder (c) two small mirrors (d) a battery cell
  29. 29.True or false: yeast is not needed for the periscope. (a) False (b) True
  30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
  31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same light (c) the angle of the mirrors (d) how clear the view is
  32. 32.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a mirror (d) still clear water
  33. 33.True or false: sticky tape is not needed for the periscope. (a) False (b) True
  34. 34.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) only darkness (d) two pictures
  35. 35.True or false: yeast is needed for the periscope. (a) True (b) False
  36. 36.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
  37. 37.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) taller walls (c) the ground (d) nothing at all
  38. 38.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we keep it the same (b) we measure it (c) we change it
  40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) a magnet (d) a pencil

Answer key

  1. False
  2. False
  3. 2
  4. a ruler
  5. 2
  6. yeast
  7. False
  8. needed
  9. True
  10. turmeric powder
  11. a magnet
  12. False
  13. plastic safety mirrors
  14. False
  15. 45 degrees
  16. False
  17. True
  18. aluminium foil
  19. a battery cell
  20. still clear water
  21. True
  22. reflects light poorly
  23. a pencil
  24. False
  25. False
  26. True
  27. black cloth
  28. two small mirrors
  29. True
  30. True
  31. the angle of the mirrors
  32. a dull brick
  33. False
  34. only darkness
  35. False
  36. a grown-up
  37. taller walls
  38. reflects light well
  39. we change it
  40. a magnet

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