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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 146 · 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.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
  2. 2.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a submarine crew (d) a pilot in a plane
  3. 3.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
  4. 4.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) a rough wooden board
  5. 5.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a dull brick (d) still clear water
  6. 6.⚖️ 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
  7. 7.⚖️ 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
  8. 8.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) an empty juice carton (d) a balloon
  9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
  10. 10.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) a rough wooden board (d) a shiny steel plate
  11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) vinegar (c) a ruler (d) sticky tape
  12. 12.True or false: a mirror reflects light poorly. (a) True (b) False
  13. 13.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
  14. 14.True or false: sticky tape is needed for the periscope. (a) False (b) True
  15. 15.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) a ruler (d) a magnet
  16. 16.⚖️ 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
  17. 17.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
  18. 18.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a battery cell (d) sticky tape
  19. 19.⚖️ 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
  20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) two small mirrors (d) a magnet
  21. 21.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) loose glass panes (d) plastic safety mirrors
  22. 22.True or false: a balloon is needed for the periscope. (a) False (b) True
  23. 23.True or false: a magnet is not needed for the periscope. (a) True (b) False
  24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
  25. 25.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
  26. 26.⚖️ 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 keep it the same (c) we change it
  27. 27.⚖️ 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) False (b) True
  28. 28.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
  29. 29.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) refraction (d) reflection
  30. 30.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
  31. 31.True or false: still clear water reflects light well. (a) True (b) False
  32. 32.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) upside down only (d) in colour
  33. 33.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
  34. 34.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) still clear water (d) a rough wooden board
  35. 35.🔭 Which of these reflects light poorly? (a) a dull brick (b) aluminium foil (c) a shiny steel plate (d) a mirror
  36. 36.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a balloon (c) sticky tape (d) an empty juice carton
  37. 37.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  38. 38.True or false: black cloth reflects light poorly. (a) False (b) True
  39. 39.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
  40. 40.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly

Answer key

  1. needed
  2. a submarine crew
  3. needed
  4. a rough wooden board
  5. a dull brick
  6. we change it
  7. True
  8. an empty juice carton
  9. we keep it the same
  10. a shiny steel plate
  11. vinegar
  12. False
  13. not needed
  14. True
  15. a ruler
  16. False
  17. False
  18. a battery cell
  19. False
  20. a magnet
  21. plastic safety mirrors
  22. False
  23. True
  24. 2
  25. True
  26. we keep it the same
  27. False
  28. a grown-up
  29. reflection
  30. not needed
  31. True
  32. flipped left to right
  33. False
  34. still clear water
  35. a dull brick
  36. a balloon
  37. reflects light poorly
  38. True
  39. taller walls
  40. reflects light well

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