← Mirror periscope lesson New set →

Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 829 · 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.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) flipped left to right (d) much bigger
  2. 2.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
  3. 3.True or false: aluminium foil reflects light well. (a) False (b) True
  4. 4.🔭 Which of these reflects light poorly? (a) a dull brick (b) aluminium foil (c) a mirror (d) a shiny steel plate
  5. 5.⚖️ 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
  6. 6.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) hear far sounds (d) see over a wall
  7. 7.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) a mirror (d) aluminium foil
  8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
  9. 9.🔭 How many mirrors does a simple periscope use?
  10. 10.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a shiny steel plate (d) black cloth
  11. 11.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a friend’s toy (d) a wall
  12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) two small mirrors (d) a battery cell
  13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) vinegar (c) sticky tape (d) an empty juice carton
  14. 14.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
  15. 15.🧺 Which of these is needed for the periscope? (a) sticky tape (b) vinegar (c) yeast (d) a balloon
  16. 16.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) turmeric powder (d) a pencil
  17. 17.True or false: still clear water reflects light well. (a) True (b) False
  18. 18.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) vinegar (d) an empty juice carton
  19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) black cloth (d) still clear water
  21. 21.⚖️ 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
  22. 22.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
  23. 23.True or false: a pencil is needed for the periscope. (a) False (b) True
  24. 24.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) an empty juice carton (d) a battery cell
  25. 25.True or false: yeast is not needed for the periscope. (a) False (b) True
  26. 26.True or false: vinegar is not needed for the periscope. (a) True (b) False
  27. 27.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) evaporation (d) refraction
  28. 28.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) a brighter view (d) two pictures
  29. 29.True or false: a magnet is not needed for the periscope. (a) True (b) False
  30. 30.⚖️ 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 keep it the same (c) we change it
  31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
  32. 32.⚖️ 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 change it (b) we measure it (c) we keep it the same
  33. 33.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
  34. 34.⚖️ 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
  35. 35.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
  36. 36.True or false: a ruler is needed for the periscope. (a) False (b) True
  37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a balloon (d) an empty juice carton
  38. 38.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 90 degrees (d) 180 degrees
  39. 39.True or false: a balloon is needed for the periscope. (a) True (b) False
  40. 40.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well

Answer key

  1. flipped left to right
  2. a grown-up
  3. True
  4. a dull brick
  5. True
  6. see over a wall
  7. a rough wooden board
  8. 2
  9. 2
  10. a shiny steel plate
  11. the Sun
  12. a battery cell
  13. vinegar
  14. reflects light poorly
  15. sticky tape
  16. turmeric powder
  17. True
  18. vinegar
  19. True
  20. black cloth
  21. True
  22. needed
  23. True
  24. an empty juice carton
  25. True
  26. True
  27. reflection
  28. only darkness
  29. True
  30. we keep it the same
  31. False
  32. we change it
  33. not needed
  34. True
  35. needed
  36. True
  37. a balloon
  38. 45 degrees
  39. False
  40. reflects light well

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids