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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 502 · 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.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
  2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) a pencil (d) an empty juice carton
  3. 3.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  4. 4.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) refraction (d) reflection
  5. 5.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 180 degrees (d) 90 degrees
  6. 6.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  7. 7.🔭 How many mirrors does a simple periscope use?
  8. 8.True or false: black cloth reflects light poorly. (a) True (b) False
  9. 9.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
  10. 10.🧺 Which of these is needed for the periscope? (a) a battery cell (b) sticky tape (c) a balloon (d) turmeric powder
  11. 11.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
  12. 12.True or false: vinegar is not needed for the periscope. (a) True (b) False
  13. 13.⚖️ 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
  14. 14.⚖️ 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) False (b) True
  15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
  16. 16.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) black cloth (d) still clear water
  17. 17.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a pilot in a plane (d) a submarine crew
  18. 18.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) the ground (d) only short walls
  19. 19.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) a wall (d) the Sun
  20. 20.True or false: aluminium foil reflects light poorly. (a) True (b) False
  21. 21.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) a rainbow (d) two pictures
  22. 22.True or false: a dull brick reflects light well. (a) True (b) False
  23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) turmeric powder
  24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) yeast (c) a pencil (d) an empty juice carton
  25. 25.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a mirror (d) a rough wooden board
  26. 26.🔍 Which is the odd one out? (a) a dull brick (b) aluminium foil (c) a rough wooden board (d) black cloth
  27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) vinegar (c) a pencil (d) two small mirrors
  28. 28.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
  29. 29.🔭 How many times does light bounce off a mirror in a simple periscope?
  30. 30.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) yeast (c) a magnet (d) a battery cell
  31. 31.⚖️ 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 change it (b) we keep it the same (c) we measure it
  32. 32.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
  33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we change it (c) we measure it
  34. 34.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
  35. 35.True or false: still clear water reflects light poorly. (a) False (b) True
  36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same light (b) the same mirrors (c) the angle of the mirrors (d) the same carton
  37. 37.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  38. 38.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) dark soil (d) a dull brick
  39. 39.True or false: aluminium foil reflects light well. (a) True (b) False
  40. 40.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) big wall mirrors (d) loose glass panes

Answer key

  1. needed
  2. a magnet
  3. reflects light poorly
  4. reflection
  5. 45 degrees
  6. reflects light well
  7. 2
  8. True
  9. False
  10. sticky tape
  11. not needed
  12. True
  13. True
  14. False
  15. True
  16. still clear water
  17. a submarine crew
  18. taller walls
  19. the Sun
  20. False
  21. only darkness
  22. False
  23. turmeric powder
  24. yeast
  25. a mirror
  26. aluminium foil
  27. vinegar
  28. not needed
  29. 2
  30. an empty juice carton
  31. we measure it
  32. not needed
  33. we keep it the same
  34. not needed
  35. False
  36. the angle of the mirrors
  37. reflects light poorly
  38. still clear water
  39. True
  40. plastic safety mirrors

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