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Periscope STEM Project Worksheet

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

Answer key

  1. the Sun
  2. turmeric powder
  3. False
  4. 45 degrees
  5. a battery cell
  6. the same carton
  7. the same light
  8. aluminium foil
  9. a submarine crew
  10. taller walls
  11. True
  12. False
  13. black cloth
  14. a battery cell
  15. True
  16. a magnet
  17. a shiny steel plate
  18. needed
  19. a mirror
  20. dark soil
  21. a balloon
  22. plastic safety mirrors
  23. False
  24. False
  25. True
  26. not needed
  27. False
  28. vinegar
  29. True
  30. reflects light poorly
  31. False
  32. 2
  33. not needed
  34. True
  35. needed
  36. True
  37. reflects light well
  38. True
  39. two small mirrors
  40. a grown-up

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