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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 994 · 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.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) flipped left to right (d) much bigger
  2. 2.True or false: sticky tape is needed for the periscope. (a) False (b) True
  3. 3.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) black cloth (c) a mirror (d) aluminium foil
  4. 4.⚖️ 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 change it (c) we measure it
  5. 5.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) see over a wall (d) hear far sounds
  6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
  7. 7.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
  8. 8.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) a battery cell (d) two small mirrors
  9. 9.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
  10. 10.⚖️ 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) how clear the view is (c) the same mirrors
  11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same carton (c) the same mirrors (d) how clear the view is
  12. 12.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) still clear water (d) a mirror
  13. 13.True or false: sticky tape is not needed for the periscope. (a) False (b) True
  14. 14.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  15. 15.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so it can float (c) to make it heavy (d) so light reaches the eye
  16. 16.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  17. 17.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
  18. 18.True or false: vinegar is needed for the periscope. (a) True (b) False
  19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) yeast (c) an empty juice carton (d) two small mirrors
  20. 20.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
  21. 21.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
  22. 22.🔭 How many times does light bounce off a mirror in a simple periscope?
  23. 23.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
  24. 24.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
  25. 25.🔭 Which of these reflects light well? (a) black cloth (b) still clear water (c) a dull brick (d) a rough wooden board
  26. 26.⚖️ 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
  27. 27.True or false: a balloon is not needed for the periscope. (a) True (b) False
  28. 28.True or false: turmeric powder is needed for the periscope. (a) True (b) False
  29. 29.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
  30. 30.🔭 Which of these reflects light well? (a) aluminium foil (b) a dull brick (c) a rough wooden board (d) black cloth
  31. 31.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) black cloth (d) a mirror
  32. 32.True or false: a battery cell is not needed for the periscope. (a) True (b) False
  33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) an empty juice carton (d) two small mirrors
  34. 34.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a shiny steel plate (d) a rough wooden board
  35. 35.🧺 Which of these is not needed for the periscope? (a) yeast (b) sticky tape (c) a ruler (d) a pencil
  36. 36.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) two pictures (d) a brighter view
  37. 37.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
  38. 38.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
  39. 39.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) black cloth
  40. 40.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a ruler (c) sticky tape (d) two small mirrors

Answer key

  1. flipped left to right
  2. True
  3. black cloth
  4. we keep it the same
  5. see over a wall
  6. False
  7. plastic safety mirrors
  8. two small mirrors
  9. not needed
  10. the same mirrors
  11. how clear the view is
  12. a dull brick
  13. False
  14. reflects light poorly
  15. so light reaches the eye
  16. reflects light well
  17. needed
  18. False
  19. yeast
  20. needed
  21. not needed
  22. 2
  23. the Sun
  24. False
  25. still clear water
  26. we measure it
  27. True
  28. False
  29. needed
  30. aluminium foil
  31. a mirror
  32. True
  33. a balloon
  34. a shiny steel plate
  35. yeast
  36. only darkness
  37. not needed
  38. needed
  39. black cloth
  40. a balloon

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