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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 805 · 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.True or false: a magnet is not needed for the periscope. (a) True (b) False
  2. 2.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
  3. 3.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) still clear water (d) dark soil
  4. 4.True or false: a rough wooden board reflects light poorly. (a) True (b) False
  5. 5.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
  6. 6.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
  7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) the angle of the mirrors (c) how clear the view is (d) the object we look at
  8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a pencil (d) an empty juice carton
  9. 9.True or false: yeast is not needed for the periscope. (a) False (b) True
  10. 10.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  11. 11.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
  12. 12.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) yeast (d) a ruler
  13. 13.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
  14. 14.⚖️ 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
  15. 15.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  16. 16.True or false: vinegar is needed for the periscope. (a) False (b) True
  17. 17.🔭 How many mirrors does a simple periscope use?
  18. 18.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) still clear water (d) a rough wooden board
  19. 19.⚖️ 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 object we look at (c) the angle of the mirrors (d) the same mirrors
  20. 20.True or false: black cloth reflects light well. (a) False (b) True
  21. 21.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) dark soil (d) a dull brick
  22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
  23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
  24. 24.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
  25. 25.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a rough wooden board (d) aluminium foil
  26. 26.🔭 How many times does light bounce off a mirror in a simple periscope?
  27. 27.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) vinegar (c) a balloon (d) a battery cell
  28. 28.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
  29. 29.⚖️ 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) True (b) False
  30. 30.🧺 Which of these is needed for the periscope? (a) a pencil (b) a battery cell (c) turmeric powder (d) yeast
  31. 31.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  32. 32.🔭 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
  33. 33.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
  34. 34.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 45 degrees (d) 10 degrees
  35. 35.⚖️ 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 measure it (c) we keep it the same
  36. 36.⚖️ 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) the same mirrors (c) how clear the view is
  37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) vinegar (c) sticky tape (d) two small mirrors
  38. 38.True or false: sticky tape is needed for the periscope. (a) False (b) True
  39. 39.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
  40. 40.True or false: a rough wooden board reflects light well. (a) False (b) True

Answer key

  1. True
  2. not needed
  3. dark soil
  4. True
  5. not needed
  6. a grown-up
  7. how clear the view is
  8. a balloon
  9. True
  10. reflects light poorly
  11. not needed
  12. yeast
  13. not needed
  14. True
  15. reflects light poorly
  16. False
  17. 2
  18. a rough wooden board
  19. the angle of the mirrors
  20. False
  21. still clear water
  22. False
  23. we keep it the same
  24. needed
  25. aluminium foil
  26. 2
  27. an empty juice carton
  28. False
  29. False
  30. a pencil
  31. reflects light well
  32. a submarine crew
  33. needed
  34. 45 degrees
  35. we measure it
  36. the same mirrors
  37. vinegar
  38. True
  39. only darkness
  40. False

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