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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 563 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) sticky tape (d) a pencil
  2. 2.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
  3. 3.True or false: sticky tape is not needed for the periscope. (a) True (b) False
  4. 4.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
  5. 5.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a shiny steel plate (d) dark soil
  6. 6.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
  7. 7.⚖️ 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
  8. 8.True or false: turmeric powder is needed for the periscope. (a) True (b) False
  9. 9.⚖️ 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) True (b) False
  10. 10.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so light reaches the eye (d) so it can float
  11. 11.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) a rough wooden board (d) dark soil
  12. 12.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
  13. 13.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) only short walls (d) nothing at all
  14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) how clear the view is (c) the angle of the mirrors
  15. 15.True or false: dark soil reflects light well. (a) False (b) True
  16. 16.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) a ruler (d) two small mirrors
  17. 17.True or false: yeast is not needed for the periscope. (a) True (b) False
  18. 18.True or false: vinegar is not needed for the periscope. (a) False (b) True
  19. 19.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) vinegar
  20. 20.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  21. 21.⚖️ 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
  22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) an empty juice carton (d) two small mirrors
  23. 23.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a submarine crew (c) a baker (d) a pilot in a plane
  24. 24.🔭 How many mirrors does a simple periscope use?
  25. 25.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) a rough wooden board (d) dark soil
  26. 26.True or false: aluminium foil reflects light poorly. (a) False (b) True
  27. 27.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) in colour (d) much bigger
  28. 28.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
  29. 29.🧺 Which of these is needed for the periscope? (a) yeast (b) sticky tape (c) vinegar (d) a battery cell
  30. 30.🧺 Do we need a pencil 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) False (b) True
  32. 32.True or false: still clear water reflects light poorly. (a) False (b) True
  33. 33.True or false: black cloth reflects light poorly. (a) False (b) True
  34. 34.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) a rainbow (d) two pictures
  35. 35.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) vinegar (d) a ruler
  36. 36.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) aluminium foil (d) a mirror
  37. 37.True or false: a rough wooden board reflects light well. (a) True (b) False
  38. 38.True or false: aluminium foil reflects light well. (a) True (b) False
  39. 39.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) black cloth (d) still clear water
  40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same carton (c) the angle of the mirrors (d) the same light

Answer key

  1. turmeric powder
  2. needed
  3. False
  4. 45 degrees
  5. dark soil
  6. not needed
  7. False
  8. False
  9. False
  10. so light reaches the eye
  11. still clear water
  12. True
  13. taller walls
  14. the same light
  15. False
  16. turmeric powder
  17. True
  18. True
  19. vinegar
  20. reflects light well
  21. we keep it the same
  22. a magnet
  23. a submarine crew
  24. 2
  25. a shiny steel plate
  26. False
  27. flipped left to right
  28. False
  29. sticky tape
  30. needed
  31. False
  32. False
  33. True
  34. only darkness
  35. a ruler
  36. a rough wooden board
  37. False
  38. True
  39. black cloth
  40. the angle of the mirrors

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