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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 254 · 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.

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  1. 1.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  2. 2.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a balloon (c) turmeric powder (d) yeast
  3. 3.True or false: vinegar is needed for the periscope. (a) False (b) True
  4. 4.🔭 How many times does light bounce off a mirror in a simple periscope?
  5. 5.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) broken glass bits (d) plastic safety mirrors
  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 same carton (b) how clear the view is (c) the angle of the mirrors (d) the object we look at
  7. 7.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a balloon (c) sticky tape (d) two small mirrors
  8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) a pencil (d) an empty juice carton
  9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) an empty juice carton (d) a battery cell
  10. 10.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
  11. 11.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a rough wooden board (d) a shiny steel plate
  12. 12.True or false: turmeric powder 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 carton is kept the same. (a) False (b) True
  14. 14.⚖️ 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
  15. 15.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) still clear water (d) black cloth
  16. 16.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
  17. 17.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
  18. 18.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
  19. 19.⚖️ 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) True (b) False
  20. 20.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
  21. 21.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) a magnet (d) sticky tape
  22. 22.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  23. 23.True or false: yeast is not needed for the periscope. (a) False (b) True
  24. 24.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
  25. 25.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) only darkness (d) a rainbow
  26. 26.🔭 How many mirrors does a simple periscope use?
  27. 27.True or false: a magnet is not needed for the periscope. (a) True (b) False
  28. 28.True or false: a dull brick reflects light well. (a) False (b) True
  29. 29.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a battery cell (c) two small mirrors (d) a ruler
  30. 30.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) still clear water (c) a mirror (d) a shiny steel plate
  31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
  32. 32.⚖️ 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
  33. 33.⚖️ 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 keep it the same (b) we change it (c) we measure it
  34. 34.True or false: dark soil reflects light poorly. (a) True (b) False
  35. 35.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  36. 36.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) a shiny steel plate (d) still clear water
  37. 37.True or false: a shiny steel plate reflects light well. (a) True (b) False
  38. 38.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) a magnet (d) a pencil
  39. 39.⚖️ 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 measure it (c) we change it
  40. 40.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) aluminium foil (d) a mirror

Answer key

  1. reflects light poorly
  2. an empty juice carton
  3. False
  4. 2
  5. plastic safety mirrors
  6. the angle of the mirrors
  7. a balloon
  8. a magnet
  9. a battery cell
  10. needed
  11. a rough wooden board
  12. False
  13. True
  14. True
  15. black cloth
  16. not needed
  17. not needed
  18. needed
  19. True
  20. needed
  21. sticky tape
  22. reflects light well
  23. True
  24. needed
  25. only darkness
  26. 2
  27. True
  28. False
  29. a battery cell
  30. a rough wooden board
  31. False
  32. False
  33. we measure it
  34. True
  35. reflects light poorly
  36. a dull brick
  37. True
  38. a pencil
  39. we keep it the same
  40. a dull brick

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