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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 573 · 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.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  2. 2.True or false: two small mirrors 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? What do we do with “the object we look at”? (a) we measure it (b) we keep it the same (c) we change it
  4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a ruler (d) yeast
  5. 5.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a magnet (c) a ruler (d) two small mirrors
  6. 6.True or false: a ruler is needed for the periscope. (a) False (b) True
  7. 7.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
  8. 8.True or false: two small mirrors is needed for the periscope. (a) True (b) False
  9. 9.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) dark soil (d) a dull brick
  10. 10.True or false: a rough wooden board reflects light poorly. (a) False (b) True
  11. 11.⚖️ 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
  12. 12.🔭 How many mirrors does a simple periscope use?
  13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) an empty juice carton (d) a pencil
  14. 14.⚖️ 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 measure it (b) we change it (c) we keep it the same
  15. 15.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
  16. 16.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) a dull brick (d) aluminium foil
  17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a battery cell (d) a ruler
  18. 18.🔭 How many times does light bounce off a mirror in a simple periscope?
  19. 19.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
  20. 20.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) a wall (d) the Sun
  21. 21.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
  22. 22.True or false: black cloth reflects light well. (a) True (b) False
  23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) vinegar (d) an empty juice carton
  24. 24.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) two pictures (d) only darkness
  25. 25.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) taller walls (d) the ground
  26. 26.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) a dull brick (d) a rough wooden board
  27. 27.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
  28. 28.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see germs (d) see in the dark
  29. 29.True or false: a shiny steel plate reflects light well. (a) False (b) True
  30. 30.⚖️ 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 object we look at (d) the same mirrors
  31. 31.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a mirror (d) black cloth
  32. 32.True or false: dark soil reflects light poorly. (a) False (b) True
  33. 33.True or false: a rough wooden board reflects light well. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) aluminium foil (d) a rough wooden board
  35. 35.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
  36. 36.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) a magnet (d) two small mirrors
  37. 37.True or false: a pencil is needed for the periscope. (a) True (b) False
  38. 38.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) black cloth (c) a mirror (d) still clear water
  39. 39.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) yeast (c) turmeric powder (d) a magnet
  40. 40.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) upside down only (c) in colour (d) flipped left to right

Answer key

  1. reflects light poorly
  2. False
  3. we keep it the same
  4. yeast
  5. a magnet
  6. True
  7. False
  8. True
  9. still clear water
  10. True
  11. True
  12. 2
  13. a magnet
  14. we measure it
  15. not needed
  16. a dull brick
  17. a battery cell
  18. 2
  19. needed
  20. the Sun
  21. plastic safety mirrors
  22. False
  23. vinegar
  24. only darkness
  25. taller walls
  26. a shiny steel plate
  27. needed
  28. see over a wall
  29. True
  30. the angle of the mirrors
  31. black cloth
  32. True
  33. False
  34. aluminium foil
  35. not needed
  36. two small mirrors
  37. True
  38. black cloth
  39. an empty juice carton
  40. flipped left to right

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