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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 75 · 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.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
  2. 2.🔭 How many times does light bounce off a mirror in a simple periscope?
  3. 3.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) magnetism (d) evaporation
  4. 4.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a farmer (d) a baker
  5. 5.True or false: a ruler is not needed for the periscope. (a) False (b) True
  6. 6.🧺 Which of these is needed for the periscope? (a) a pencil (b) a magnet (c) yeast (d) a balloon
  7. 7.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) a ruler (d) a magnet
  8. 8.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  9. 9.🔭 How many mirrors does a simple periscope use?
  10. 10.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
  11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the angle of the mirrors (c) the same carton (d) the object we look at
  12. 12.🔭 Which of these reflects light poorly? (a) a mirror (b) a rough wooden board (c) a shiny steel plate (d) still clear water
  13. 13.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
  14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) big wall mirrors (d) plastic safety mirrors
  15. 15.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) black cloth (d) still clear water
  16. 16.🔭 Which of these reflects light poorly? (a) a mirror (b) dark soil (c) still clear water (d) a shiny steel plate
  17. 17.True or false: sticky tape is not needed for the periscope. (a) True (b) False
  18. 18.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) an empty juice carton (c) a pencil (d) a ruler
  19. 19.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
  20. 20.⚖️ 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) True (b) False
  21. 21.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
  22. 22.True or false: two small mirrors is needed for the periscope. (a) True (b) False
  23. 23.🔭 Which of these reflects light poorly? (a) aluminium foil (b) black cloth (c) still clear water (d) a mirror
  24. 24.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a rainbow (d) a brighter view
  25. 25.⚖️ 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
  26. 26.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a mirror (d) aluminium foil
  27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
  28. 28.⚖️ 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) True (b) False
  29. 29.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a shiny steel plate (d) a rough wooden board
  30. 30.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
  31. 31.True or false: black cloth reflects light poorly. (a) True (b) False
  32. 32.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) a balloon (d) an empty juice carton
  33. 33.⚖️ 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
  34. 34.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) black cloth (d) a mirror
  35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a magnet (d) an empty juice carton
  36. 36.True or false: a battery cell is needed for the periscope. (a) False (b) True
  37. 37.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) upside down only (c) in colour (d) much bigger
  38. 38.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
  39. 39.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
  40. 40.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well

Answer key

  1. we keep it the same
  2. 2
  3. reflection
  4. a submarine crew
  5. False
  6. a pencil
  7. a magnet
  8. reflects light well
  9. 2
  10. not needed
  11. how clear the view is
  12. a rough wooden board
  13. True
  14. plastic safety mirrors
  15. still clear water
  16. dark soil
  17. False
  18. a battery cell
  19. needed
  20. True
  21. the Sun
  22. True
  23. black cloth
  24. only darkness
  25. False
  26. dark soil
  27. True
  28. False
  29. a shiny steel plate
  30. needed
  31. True
  32. an empty juice carton
  33. we keep it the same
  34. a mirror
  35. a magnet
  36. False
  37. flipped left to right
  38. True
  39. needed
  40. reflects light poorly

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