Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 25 · 40 questions

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.

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

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