Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 580 · 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.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) a shiny steel plate (d) aluminium foil
2. 2.True or false: a magnet is needed for the periscope. (a) True (b) False
3. 3.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see in the dark (d) see germs
4. 4.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
5. 5.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a wall (d) a friend’s toy
6. 6.🔮 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
7. 7.⚖️ 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 change it (b) we keep it the same (c) we measure it
8. 8.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) vinegar (d) a pencil
11. 11.True or false: a mirror reflects light poorly. (a) False (b) True
12. 12.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a rough wooden board (c) a shiny steel plate (d) a mirror
13. 13.True or false: a magnet is not needed for the periscope. (a) True (b) False
14. 14.⚖️ 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 measure it (b) we change it (c) we keep it the same
15. 15.🔭 How many times does light bounce off a mirror in a simple periscope?
16. 16.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.True or false: a shiny steel plate reflects light well. (a) True (b) False
18. 18.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) a rough wooden board (d) dark soil
19. 19.True or false: a mirror reflects light well. (a) True (b) False
20. 20.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.True or false: a balloon is needed for the periscope. (a) True (b) False
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) two small mirrors (d) turmeric powder
24. 24.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) two small mirrors (d) a balloon
25. 25.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) turmeric powder (d) sticky tape
26. 26.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) still clear water (d) aluminium foil
27. 27.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
28. 28.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) a shiny steel plate (d) aluminium foil
29. 29.🔭 Who uses a periscope to look above the water? (a) a baker (b) a submarine crew (c) a farmer (d) a pilot in a plane
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a balloon (c) an empty juice carton (d) sticky tape
31. 31.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) sticky tape (d) an empty juice carton
34. 34.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 180 degrees (d) 45 degrees
35. 35.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) a rough wooden board (d) a dull brick
36. 36.True or false: a battery cell is not needed for the periscope. (a) False (b) True
37. 37.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
38. 38.True or false: a battery cell is needed for the periscope. (a) True (b) False
39. 39.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) a battery cell (d) an empty juice carton
40. 40.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed

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