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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 5 · 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.

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

Answer key

  1. True
  2. see over a wall
  3. we keep it the same
  4. reflects light poorly
  5. not needed
  6. aluminium foil
  7. 2
  8. True
  9. needed
  10. how clear the view is
  11. 2
  12. the Sun
  13. reflects light well
  14. we change it
  15. a submarine crew
  16. a dull brick
  17. a magnet
  18. reflection
  19. True
  20. False
  21. False
  22. True
  23. a pencil
  24. False
  25. yeast
  26. sticky tape
  27. dark soil
  28. a battery cell
  29. a magnet
  30. not needed
  31. False
  32. needed
  33. turmeric powder
  34. still clear water
  35. False
  36. a ruler
  37. we keep it the same
  38. only darkness
  39. a rough wooden board
  40. True

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