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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 685 · 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.True or false: a pencil is not needed for the periscope. (a) True (b) False
  3. 3.⚖️ 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 same carton (c) the angle of the mirrors
  4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we change it (b) we keep it the same (c) we measure it
  5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) yeast
  6. 6.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
  7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
  8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) turmeric powder (d) two small mirrors
  9. 9.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  10. 10.True or false: a battery cell is not needed for the periscope. (a) False (b) True
  11. 11.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
  12. 12.True or false: two small mirrors is needed for the periscope. (a) False (b) True
  13. 13.⚖️ 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
  14. 14.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) a mirror (d) dark soil
  15. 15.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
  16. 16.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) magnetism (d) evaporation
  17. 17.True or false: dark soil reflects light poorly. (a) True (b) False
  18. 18.⚖️ 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
  19. 19.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 10 degrees (d) 90 degrees
  20. 20.True or false: black cloth reflects light poorly. (a) False (b) True
  21. 21.True or false: sticky tape is needed for the periscope. (a) False (b) True
  22. 22.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a farmer (d) a pilot in a plane
  23. 23.True or false: vinegar is needed for the periscope. (a) True (b) False
  24. 24.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  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) a magnet (b) a ruler (c) sticky tape (d) an empty juice carton
  27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) vinegar
  28. 28.🧺 Which of these is not needed for the periscope? (a) a magnet (b) sticky tape (c) two small mirrors (d) an empty juice carton
  29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) sticky tape (d) a balloon
  30. 30.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
  31. 31.⚖️ 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
  32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
  33. 33.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
  34. 34.True or false: aluminium foil reflects light poorly. (a) True (b) False
  35. 35.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a mirror (d) dark soil
  36. 36.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a shiny steel plate (d) aluminium foil
  37. 37.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) taller walls (d) only short walls
  38. 38.⚖️ 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) False (b) True
  39. 39.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
  40. 40.True or false: a balloon is not needed for the periscope. (a) False (b) True

Answer key

  1. 2
  2. False
  3. the same carton
  4. we change it
  5. yeast
  6. False
  7. we keep it the same
  8. turmeric powder
  9. reflects light well
  10. True
  11. False
  12. True
  13. True
  14. a mirror
  15. a grown-up
  16. reflection
  17. True
  18. True
  19. 45 degrees
  20. True
  21. True
  22. a submarine crew
  23. False
  24. reflects light well
  25. 2
  26. a magnet
  27. vinegar
  28. a magnet
  29. a balloon
  30. needed
  31. we keep it the same
  32. True
  33. not needed
  34. False
  35. a mirror
  36. black cloth
  37. taller walls
  38. False
  39. the Sun
  40. True

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