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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 797 · 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 of these reflects light well? (a) black cloth (b) a mirror (c) a dull brick (d) dark soil
  2. 2.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
  3. 3.True or false: a magnet is not needed for the periscope. (a) False (b) True
  4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
  5. 5.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
  6. 6.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
  7. 7.🧺 Which of these is not needed for the periscope? (a) a ruler (b) vinegar (c) a pencil (d) an empty juice carton
  8. 8.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) a friend’s toy (d) the Sun
  9. 9.⚖️ 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
  10. 10.True or false: sticky tape is not needed for the periscope. (a) False (b) True
  11. 11.🔭 How many times does light bounce off a mirror in a simple periscope?
  12. 12.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
  13. 13.🛟 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
  14. 14.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) black cloth (d) a mirror
  15. 15.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a dull brick (d) a shiny steel plate
  16. 16.🧺 Which of these is needed for the periscope? (a) a ruler (b) yeast (c) a battery cell (d) turmeric powder
  17. 17.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
  18. 18.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) two small mirrors (c) a pencil (d) sticky tape
  20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) yeast (c) a pencil (d) sticky tape
  21. 21.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) refraction (c) reflection (d) evaporation
  22. 22.⚖️ 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
  23. 23.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
  24. 24.True or false: still clear water reflects light well. (a) False (b) True
  25. 25.True or false: a dull brick reflects light well. (a) False (b) True
  26. 26.⚖️ 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) how clear the view is (c) the object we look at (d) the same mirrors
  27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) turmeric powder
  28. 28.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) loose glass panes (d) broken glass bits
  29. 29.True or false: sticky tape is needed for the periscope. (a) False (b) True
  30. 30.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
  31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
  32. 32.🔭 Which of these reflects light poorly? (a) a mirror (b) dark soil (c) aluminium foil (d) still clear water
  33. 33.True or false: a balloon is needed for the periscope. (a) True (b) False
  34. 34.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  35. 35.🔭 How many mirrors does a simple periscope use?
  36. 36.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a rough wooden board (d) a shiny steel plate
  37. 37.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
  38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
  39. 39.⚖️ 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) the same carton (c) how clear the view is
  40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a magnet (d) an empty juice carton

Answer key

  1. a mirror
  2. only darkness
  3. True
  4. False
  5. needed
  6. False
  7. vinegar
  8. the Sun
  9. False
  10. False
  11. 2
  12. False
  13. a grown-up
  14. black cloth
  15. a dull brick
  16. a ruler
  17. needed
  18. reflects light well
  19. a battery cell
  20. yeast
  21. reflection
  22. we change it
  23. needed
  24. True
  25. False
  26. the angle of the mirrors
  27. turmeric powder
  28. plastic safety mirrors
  29. True
  30. 45 degrees
  31. False
  32. dark soil
  33. False
  34. reflects light well
  35. 2
  36. a shiny steel plate
  37. needed
  38. True
  39. the same carton
  40. a magnet

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