Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 96 · 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.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
2. 2.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
3. 3.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) dark soil (d) a mirror
4. 4.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) sticky tape (d) a balloon
5. 5.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) dark soil (d) a mirror
6. 6.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 10 degrees (d) 180 degrees
7. 7.🔭 How many times does light bounce off a mirror in a simple periscope?
8. 8.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
9. 9.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) only darkness (d) a rainbow
10. 10.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
11. 11.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
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 carton (b) the angle of the mirrors (c) how clear the view is
15. 15.True or false: a mirror reflects light poorly. (a) False (b) True
16. 16.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a friend’s toy (d) a tree
17. 17.⚖️ 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
18. 18.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
19. 19.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) still clear water (d) a mirror
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) sticky tape (d) turmeric powder
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) an empty juice carton (d) a battery cell
23. 23.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
24. 24.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a shiny steel plate (d) a rough wooden board
25. 25.🔭 How many mirrors does a simple periscope use?
26. 26.True or false: a pencil is needed for the periscope. (a) False (b) True
27. 27.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) plastic safety mirrors (d) loose glass panes
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) the angle of the mirrors (c) how clear the view is (d) the object we look at
29. 29.🔭 Which of these reflects light well? (a) a shiny steel plate (b) dark soil (c) black cloth (d) a rough wooden board
30. 30.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a magnet (d) a pencil
31. 31.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a pencil (c) a balloon (d) a battery cell
32. 32.True or false: a balloon is needed for the periscope. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a dull brick (d) aluminium foil
34. 34.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
35. 35.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🔭 Which of these reflects light poorly? (a) a mirror (b) dark soil (c) a shiny steel plate (d) still clear water
40. 40.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) still clear water (d) a rough wooden board

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