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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 961 · 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.🔭 How many mirrors does a simple periscope use?
  2. 2.True or false: black cloth reflects light poorly. (a) False (b) True
  3. 3.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a pencil (d) a balloon
  4. 4.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
  5. 5.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  6. 6.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) yeast (d) two small mirrors
  7. 7.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) black cloth (d) a shiny steel plate
  8. 8.True or false: still clear water reflects light poorly. (a) False (b) True
  9. 9.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
  10. 10.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) aluminium foil (d) black cloth
  11. 11.🔮 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
  12. 12.🧺 Which of these is needed for the periscope? (a) yeast (b) an empty juice carton (c) turmeric powder (d) a balloon
  13. 13.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a mirror (d) a rough wooden board
  14. 14.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
  15. 15.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
  16. 16.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
  17. 17.⚖️ 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 mirrors (b) the angle of the mirrors (c) the same light (d) the object we look at
  18. 18.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) see in the dark (d) hear far sounds
  19. 19.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) two small mirrors (d) vinegar
  20. 20.True or false: black cloth reflects light well. (a) False (b) True
  21. 21.True or false: a ruler is needed for the periscope. (a) False (b) True
  22. 22.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) a pencil (d) a battery cell
  23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
  24. 24.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) a battery cell (d) a ruler
  25. 25.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a rough wooden board (d) aluminium foil
  26. 26.⚖️ 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
  27. 27.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
  28. 28.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
  29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
  30. 30.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) still clear water (d) black cloth
  31. 31.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
  32. 32.True or false: two small mirrors is needed for the periscope. (a) False (b) True
  33. 33.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
  34. 34.True or false: dark soil reflects light poorly. (a) True (b) False
  35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) turmeric powder (c) sticky tape (d) an empty juice carton
  36. 36.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) a rough wooden board
  37. 37.🧺 Which of these is needed for the periscope? (a) a balloon (b) a pencil (c) a magnet (d) turmeric powder
  38. 38.🛟 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
  39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
  40. 40.True or false: a magnet is needed for the periscope. (a) False (b) True

Answer key

  1. 2
  2. True
  3. a balloon
  4. the Sun
  5. reflects light well
  6. two small mirrors
  7. a shiny steel plate
  8. False
  9. not needed
  10. aluminium foil
  11. only darkness
  12. an empty juice carton
  13. a mirror
  14. not needed
  15. needed
  16. reflects light poorly
  17. the angle of the mirrors
  18. see over a wall
  19. vinegar
  20. False
  21. True
  22. a battery cell
  23. False
  24. a ruler
  25. aluminium foil
  26. True
  27. needed
  28. not needed
  29. False
  30. black cloth
  31. needed
  32. True
  33. not needed
  34. True
  35. turmeric powder
  36. a rough wooden board
  37. a pencil
  38. plastic safety mirrors
  39. True
  40. False

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