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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 927 · 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 is the odd one out? (a) black cloth (b) a shiny steel plate (c) aluminium foil (d) still clear water
  2. 2.🔭 How many mirrors does a simple periscope use?
  3. 3.True or false: a magnet is not needed for the periscope. (a) True (b) False
  4. 4.True or false: vinegar is needed for the periscope. (a) False (b) True
  5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the same mirrors (c) the same carton (d) how clear the view is
  6. 6.⚖️ 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 carton (c) the same mirrors (d) the object we look at
  7. 7.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) a shiny steel plate (d) black cloth
  8. 8.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) a magnet (d) two small mirrors
  9. 9.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a rough wooden board (c) still clear water (d) a mirror
  10. 10.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a rough wooden board (d) a shiny steel plate
  11. 11.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
  12. 12.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) black cloth (d) dark soil
  13. 13.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
  14. 14.⚖️ 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 measure it (c) we keep it the same
  15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
  16. 16.🧺 Which of these is not needed for the periscope? (a) yeast (b) sticky tape (c) two small mirrors (d) a pencil
  17. 17.True or false: a dull brick reflects light well. (a) False (b) True
  18. 18.True or false: aluminium foil reflects light poorly. (a) True (b) False
  19. 19.🧺 Which of these is needed for the periscope? (a) a magnet (b) a pencil (c) turmeric powder (d) vinegar
  20. 20.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  21. 21.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a mirror (d) a dull brick
  22. 22.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
  23. 23.🔭 How many times does light bounce off a mirror in a simple periscope?
  24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) sticky tape (d) yeast
  25. 25.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  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 keep it the same (b) we change it (c) we measure it
  27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
  28. 28.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a magnet (d) an empty juice carton
  29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we change it (c) we keep it the same
  30. 30.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
  31. 31.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
  32. 32.True or false: sticky tape is needed for the periscope. (a) True (b) False
  33. 33.🔭 Which of these reflects light well? (a) black cloth (b) still clear water (c) a rough wooden board (d) a dull brick
  34. 34.True or false: a pencil is needed for the periscope. (a) False (b) True
  35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a battery cell (d) a pencil
  36. 36.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) see over a wall (d) hear far sounds
  37. 37.True or false: a pencil is not needed for the periscope. (a) True (b) False
  38. 38.🔭 Which of these reflects light poorly? (a) still clear water (b) black cloth (c) a shiny steel plate (d) a mirror
  39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) sticky tape (d) a magnet
  40. 40.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed

Answer key

  1. black cloth
  2. 2
  3. True
  4. False
  5. how clear the view is
  6. the angle of the mirrors
  7. a shiny steel plate
  8. two small mirrors
  9. a rough wooden board
  10. a shiny steel plate
  11. needed
  12. still clear water
  13. needed
  14. we keep it the same
  15. True
  16. yeast
  17. False
  18. False
  19. a pencil
  20. reflects light poorly
  21. a mirror
  22. not needed
  23. 2
  24. yeast
  25. reflects light well
  26. we keep it the same
  27. True
  28. an empty juice carton
  29. we keep it the same
  30. False
  31. needed
  32. True
  33. still clear water
  34. True
  35. a battery cell
  36. see over a wall
  37. False
  38. black cloth
  39. a magnet
  40. not needed

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