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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 481 · 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.

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  1. 1.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) still clear water (d) a dull brick
  2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) a ruler (d) an empty juice carton
  3. 3.🔭 How many mirrors does a simple periscope use?
  4. 4.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
  5. 5.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
  6. 6.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
  7. 7.True or false: yeast is needed for the periscope. (a) False (b) True
  8. 8.True or false: black cloth reflects light poorly. (a) False (b) True
  9. 9.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) the Sun (d) a wall
  10. 10.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) the ground (d) only short walls
  11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we change it (c) we keep it the same
  12. 12.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a balloon (c) a ruler (d) two small mirrors
  13. 13.⚖️ 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) how clear the view is (c) the angle of the mirrors (d) the same light
  14. 14.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) black cloth (d) still clear water
  15. 15.True or false: a dull brick reflects light well. (a) False (b) True
  16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) yeast (d) a pencil
  17. 17.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 90 degrees (d) 10 degrees
  18. 18.True or false: a dull brick reflects light poorly. (a) True (b) False
  19. 19.⚖️ 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
  20. 20.⚖️ 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) how clear the view is (c) the same light
  21. 21.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) a dull brick (d) dark soil
  22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a ruler (d) a magnet
  23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
  24. 24.True or false: aluminium foil reflects light well. (a) False (b) True
  25. 25.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
  26. 26.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
  27. 27.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  28. 28.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) black cloth (d) a mirror
  29. 29.⚖️ 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 keep it the same (c) we measure it
  30. 30.True or false: a rough wooden board reflects light well. (a) False (b) True
  31. 31.🔭 Which of these reflects light well? (a) aluminium foil (b) dark soil (c) black cloth (d) a dull brick
  32. 32.True or false: sticky tape is not needed for the periscope. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) a dull brick (b) aluminium foil (c) a shiny steel plate (d) a mirror
  34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
  35. 35.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) sticky tape (c) a pencil (d) an empty juice carton
  36. 36.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) a battery cell (d) a ruler
  37. 37.🔭 How many times does light bounce off a mirror in a simple periscope?
  38. 38.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
  39. 39.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
  40. 40.⚖️ 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) True (b) False

Answer key

  1. still clear water
  2. a balloon
  3. 2
  4. needed
  5. a grown-up
  6. needed
  7. False
  8. True
  9. the Sun
  10. taller walls
  11. we keep it the same
  12. a balloon
  13. the angle of the mirrors
  14. black cloth
  15. False
  16. yeast
  17. 45 degrees
  18. True
  19. we keep it the same
  20. the same light
  21. aluminium foil
  22. a magnet
  23. False
  24. True
  25. needed
  26. False
  27. reflects light well
  28. a mirror
  29. we keep it the same
  30. False
  31. aluminium foil
  32. False
  33. a dull brick
  34. False
  35. a battery cell
  36. a ruler
  37. 2
  38. not needed
  39. True
  40. True

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