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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 528 · 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.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a pilot in a plane (c) a baker (d) a farmer
  2. 2.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees
  3. 3.True or false: vinegar is not needed for the periscope. (a) False (b) True
  4. 4.True or false: yeast is needed for the periscope. (a) True (b) False
  5. 5.True or false: dark soil reflects light well. (a) True (b) False
  6. 6.⚖️ 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
  7. 7.True or false: a pencil is not needed for the periscope. (a) False (b) True
  8. 8.True or false: a mirror reflects light well. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) a dull brick (d) dark soil
  10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same light (c) the angle of the mirrors (d) the same mirrors
  11. 11.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
  12. 12.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
  13. 13.True or false: a magnet is not needed for the periscope. (a) True (b) False
  14. 14.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
  15. 15.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
  16. 16.🔭 How many mirrors does a simple periscope use?
  17. 17.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) still clear water (d) black cloth
  18. 18.True or false: a ruler is not needed for the periscope. (a) True (b) False
  19. 19.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  20. 20.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a shiny steel plate (d) a mirror
  21. 21.True or false: aluminium foil reflects light poorly. (a) False (b) True
  22. 22.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) sticky tape (d) turmeric powder
  23. 23.🧺 Which of these is needed for the periscope? (a) a magnet (b) two small mirrors (c) vinegar (d) a balloon
  24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
  25. 25.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) aluminium foil (d) a dull brick
  26. 26.⚖️ 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
  27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
  28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we change it (c) we keep it the same
  29. 29.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
  30. 30.True or false: still clear water reflects light poorly. (a) True (b) False
  31. 31.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
  32. 32.⚖️ 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
  33. 33.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) two small mirrors (d) a pencil
  35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two small mirrors (d) a pencil
  36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) two small mirrors (c) a ruler (d) an empty juice carton
  37. 37.True or false: aluminium foil reflects light well. (a) False (b) True
  38. 38.🔭 How many times does light bounce off a mirror in a simple periscope?
  39. 39.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
  40. 40.🧺 Which of these is needed for the periscope? (a) a ruler (b) vinegar (c) a balloon (d) turmeric powder

Answer key

  1. a submarine crew
  2. 45 degrees
  3. True
  4. False
  5. False
  6. we keep it the same
  7. False
  8. True
  9. still clear water
  10. the angle of the mirrors
  11. see over a wall
  12. not needed
  13. True
  14. needed
  15. not needed
  16. 2
  17. still clear water
  18. False
  19. reflects light poorly
  20. black cloth
  21. False
  22. turmeric powder
  23. two small mirrors
  24. False
  25. a dull brick
  26. the same mirrors
  27. False
  28. we keep it the same
  29. needed
  30. False
  31. not needed
  32. False
  33. reflects light well
  34. a battery cell
  35. a balloon
  36. yeast
  37. True
  38. 2
  39. not needed
  40. a ruler

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