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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 339 · 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 times does light bounce off a mirror in a simple periscope?
  2. 2.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  3. 3.True or false: two small mirrors is needed for the periscope. (a) True (b) False
  4. 4.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) yeast
  5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) vinegar (d) two small mirrors
  6. 6.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) nothing at all (d) taller walls
  7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) turmeric powder (c) a ruler (d) a pencil
  8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a ruler (d) a balloon
  9. 9.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
  10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same carton (c) how clear the view is (d) the same mirrors
  11. 11.True or false: yeast is not needed for the periscope. (a) True (b) False
  12. 12.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) still clear water (d) a dull brick
  13. 13.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a balloon (c) an empty juice carton (d) sticky tape
  14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
  15. 15.🔭 How many mirrors does a simple periscope use?
  16. 16.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
  17. 17.⚖️ 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
  18. 18.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 45 degrees (d) 180 degrees
  19. 19.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
  20. 20.True or false: black cloth reflects light poorly. (a) True (b) False
  21. 21.⚖️ 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
  22. 22.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) a dull brick (d) still clear water
  23. 23.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
  24. 24.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
  25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
  26. 26.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
  27. 27.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  28. 28.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) sticky tape (d) a magnet
  29. 29.True or false: black cloth reflects light well. (a) True (b) False
  30. 30.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a shiny steel plate (c) a mirror (d) aluminium foil
  31. 31.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a rough wooden board (d) still clear water
  32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) an empty juice carton (d) a battery cell
  33. 33.True or false: a dull brick reflects light well. (a) False (b) True
  34. 34.⚖️ 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
  35. 35.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) black cloth (d) still clear water
  36. 36.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a tree (d) a wall
  37. 37.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) still clear water (d) a mirror
  38. 38.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
  39. 39.True or false: turmeric powder is needed for the periscope. (a) False (b) True
  40. 40.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed

Answer key

  1. 2
  2. reflects light well
  3. True
  4. yeast
  5. vinegar
  6. taller walls
  7. turmeric powder
  8. a balloon
  9. not needed
  10. how clear the view is
  11. True
  12. a dull brick
  13. a balloon
  14. False
  15. 2
  16. needed
  17. False
  18. 45 degrees
  19. a grown-up
  20. True
  21. True
  22. a dull brick
  23. False
  24. needed
  25. True
  26. False
  27. reflects light well
  28. sticky tape
  29. False
  30. a rough wooden board
  31. still clear water
  32. a battery cell
  33. False
  34. we keep it the same
  35. black cloth
  36. the Sun
  37. dark soil
  38. needed
  39. False
  40. not needed

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