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Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 488 · 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.True or false: a dull brick reflects light well. (a) True (b) False
  2. 2.🔭 What does a periscope let you do? (a) see germs (b) hear far sounds (c) see in the dark (d) see over a wall
  3. 3.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) a magnet (d) an empty juice carton
  4. 4.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
  5. 5.True or false: aluminium foil reflects light well. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a shiny steel plate (d) a rough wooden board
  7. 7.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a farmer (d) a submarine crew
  8. 8.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) still clear water (d) dark soil
  9. 9.True or false: dark soil reflects light poorly. (a) True (b) False
  10. 10.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
  11. 11.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) an empty juice carton (d) turmeric powder
  12. 12.True or false: a mirror reflects light poorly. (a) False (b) True
  13. 13.True or false: vinegar is needed for the periscope. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a mirror (d) aluminium foil
  15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) vinegar (d) an empty juice carton
  16. 16.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
  17. 17.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) two pictures (d) a rainbow
  18. 18.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
  19. 19.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a rough wooden board (d) a mirror
  20. 20.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) only short walls (d) the ground
  21. 21.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) an empty juice carton (d) a pencil
  23. 23.🔭 How many mirrors does a simple periscope use?
  24. 24.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
  25. 25.True or false: a balloon is not needed for the periscope. (a) False (b) True
  26. 26.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) in colour (d) upside down only
  27. 27.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) a mirror (d) a shiny steel plate
  28. 28.True or false: a ruler is not needed for the periscope. (a) True (b) False
  29. 29.⚖️ 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) how clear the view is (c) the same mirrors (d) the object we look at
  30. 30.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so it looks shiny (c) so light reaches the eye (d) to make it heavy
  31. 31.⚖️ 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
  32. 32.True or false: a shiny steel plate reflects light well. (a) True (b) False
  33. 33.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
  34. 34.True or false: a mirror reflects light well. (a) False (b) True
  35. 35.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) magnetism (d) evaporation
  36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
  37. 37.True or false: a magnet is not needed for the periscope. (a) False (b) True
  38. 38.🔭 How many times does light bounce off a mirror in a simple periscope?
  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) True (b) False
  40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the same light

Answer key

  1. False
  2. see over a wall
  3. a magnet
  4. not needed
  5. True
  6. a rough wooden board
  7. a submarine crew
  8. still clear water
  9. True
  10. not needed
  11. an empty juice carton
  12. False
  13. False
  14. dark soil
  15. vinegar
  16. the Sun
  17. only darkness
  18. not needed
  19. a mirror
  20. taller walls
  21. reflects light well
  22. a balloon
  23. 2
  24. not needed
  25. True
  26. flipped left to right
  27. black cloth
  28. False
  29. how clear the view is
  30. so light reaches the eye
  31. False
  32. True
  33. needed
  34. True
  35. reflection
  36. False
  37. True
  38. 2
  39. True
  40. the same light

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