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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 387 · 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.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a friend’s toy (d) a tree
  2. 2.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
  3. 3.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) a dull brick (d) a rough wooden board
  4. 4.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) two pictures (d) a brighter view
  5. 5.True or false: sticky tape is needed for the periscope. (a) False (b) True
  6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) two small mirrors (c) an empty juice carton (d) sticky tape
  7. 7.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
  8. 8.True or false: aluminium foil reflects light poorly. (a) True (b) False
  9. 9.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a shiny steel plate (d) aluminium foil
  10. 10.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a shiny steel plate (d) a rough wooden board
  11. 11.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a ruler (c) vinegar (d) turmeric powder
  12. 12.🧺 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
  13. 13.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so light reaches the eye (c) so it can float (d) to make it heavy
  14. 14.🧺 Which of these is not needed for the periscope? (a) a ruler (b) vinegar (c) a pencil (d) sticky tape
  15. 15.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
  16. 16.True or false: a dull brick reflects light well. (a) True (b) False
  17. 17.⚖️ 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) True (b) False
  18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) how clear the view is (c) the angle of the mirrors
  19. 19.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) flipped left to right (d) much bigger
  20. 20.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) a dull brick (d) still clear water
  21. 21.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
  22. 22.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
  23. 23.True or false: a battery cell is not needed for the periscope. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) aluminium foil (d) a mirror
  25. 25.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
  26. 26.True or false: two small mirrors is needed for the periscope. (a) False (b) True
  27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) how clear the view is (c) the angle of the mirrors
  28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a battery cell (d) a ruler
  29. 29.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) dark soil (d) a rough wooden board
  30. 30.🔭 How many times does light bounce off a mirror in a simple periscope?
  31. 31.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
  32. 32.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
  33. 33.⚖️ 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
  34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) turmeric powder (d) sticky tape
  35. 35.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a dull brick (d) a shiny steel plate
  36. 36.True or false: vinegar is needed for the periscope. (a) False (b) True
  37. 37.🔭 Which of these reflects light well? (a) black cloth (b) still clear water (c) dark soil (d) a rough wooden board
  38. 38.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) sticky tape (d) a magnet
  39. 39.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
  40. 40.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed

Answer key

  1. the Sun
  2. a grown-up
  3. aluminium foil
  4. only darkness
  5. True
  6. vinegar
  7. False
  8. False
  9. dark soil
  10. a shiny steel plate
  11. a ruler
  12. a magnet
  13. so light reaches the eye
  14. vinegar
  15. not needed
  16. False
  17. True
  18. the object we look at
  19. flipped left to right
  20. still clear water
  21. True
  22. not needed
  23. True
  24. a rough wooden board
  25. needed
  26. True
  27. the same carton
  28. a battery cell
  29. a mirror
  30. 2
  31. True
  32. not needed
  33. True
  34. turmeric powder
  35. a shiny steel plate
  36. False
  37. still clear water
  38. a magnet
  39. not needed
  40. needed

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