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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 553 · 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.🧺 Which of these is needed for the periscope? (a) a magnet (b) a ruler (c) a balloon (d) a battery cell
  2. 2.True or false: yeast is not needed for the periscope. (a) True (b) False
  3. 3.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 180 degrees (d) 90 degrees
  4. 4.True or false: vinegar is not needed for the periscope. (a) True (b) False
  5. 5.True or false: black cloth reflects light poorly. (a) False (b) True
  6. 6.🔮 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
  7. 7.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) a balloon (d) a pencil
  8. 8.True or false: a magnet is not needed for the periscope. (a) True (b) False
  9. 9.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
  10. 10.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) black cloth (d) aluminium foil
  11. 11.True or false: still clear water reflects light poorly. (a) False (b) True
  12. 12.True or false: a ruler is needed for the periscope. (a) True (b) False
  13. 13.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
  14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) yeast (d) a ruler
  15. 15.True or false: a mirror reflects light well. (a) True (b) False
  16. 16.🔭 How many times does light bounce off a mirror in a simple periscope?
  17. 17.🔭 Which of these reflects light well? (a) dark soil (b) a mirror (c) a dull brick (d) black cloth
  18. 18.True or false: a shiny steel plate reflects light well. (a) False (b) True
  19. 19.🛟 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
  20. 20.⚖️ 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
  21. 21.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) a balloon (d) two small mirrors
  22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
  23. 23.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same mirrors (c) how clear the view is (d) the same light
  25. 25.🔭 How many mirrors does a simple periscope use?
  26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a pencil (d) a battery cell
  27. 27.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) dark soil (d) a mirror
  28. 28.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a rough wooden board
  29. 29.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) yeast (d) a ruler
  30. 30.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
  31. 31.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
  32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) sticky tape (d) a balloon
  33. 33.⚖️ 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
  34. 34.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
  35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
  36. 36.True or false: sticky tape is not needed for the periscope. (a) False (b) True
  37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) vinegar (c) a pencil (d) two small mirrors
  38. 38.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
  39. 39.⚖️ 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 keep it the same (b) we measure it (c) we change it
  40. 40.True or false: a pencil is not needed for the periscope. (a) False (b) True

Answer key

  1. a ruler
  2. True
  3. 45 degrees
  4. True
  5. True
  6. taller walls
  7. a pencil
  8. True
  9. flipped left to right
  10. aluminium foil
  11. False
  12. True
  13. needed
  14. yeast
  15. True
  16. 2
  17. a mirror
  18. True
  19. plastic safety mirrors
  20. True
  21. two small mirrors
  22. False
  23. reflects light well
  24. the angle of the mirrors
  25. 2
  26. a battery cell
  27. a mirror
  28. a rough wooden board
  29. yeast
  30. a grown-up
  31. not needed
  32. a balloon
  33. False
  34. needed
  35. True
  36. False
  37. vinegar
  38. False
  39. we measure it
  40. False

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