Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 232 · 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.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.True or false: dark soil reflects light well. (a) False (b) True
3. 3.🛟 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
4. 4.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
5. 5.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
6. 6.True or false: a balloon is needed for the periscope. (a) False (b) True
7. 7.⚖️ 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
8. 8.🔭 How many mirrors does a simple periscope use?
9. 9.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) hear far sounds (d) see over a wall
10. 10.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
11. 11.🔍 Which is the odd one out? (a) a shiny steel plate (b) dark soil (c) a dull brick (d) black cloth
12. 12.⚖️ 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) how clear the view is (c) the angle of the mirrors (d) the object we look at
13. 13.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.🔭 How many times does light bounce off a mirror in a simple periscope?
16. 16.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 10 degrees (d) 45 degrees
17. 17.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) still clear water (d) dark soil
18. 18.🔮 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
19. 19.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) a rough wooden board
20. 20.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a submarine crew (d) a baker
21. 21.True or false: still clear water reflects light well. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a rough wooden board (d) dark soil
23. 23.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) a mirror (d) a shiny steel plate
24. 24.True or false: sticky tape is not needed for the periscope. (a) True (b) False
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) a pencil (d) an empty juice carton
26. 26.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
27. 27.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) an empty juice carton (d) turmeric powder
29. 29.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
30. 30.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) vinegar (c) a battery cell (d) a magnet
31. 31.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) two small mirrors (d) a balloon
32. 32.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the angle of the mirrors (c) the same mirrors
35. 35.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a mirror (d) a rough wooden board
36. 36.True or false: a mirror reflects light well. (a) False (b) True
37. 37.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) a mirror (d) a shiny steel plate
38. 38.🧺 Which of these is needed for the periscope? (a) sticky tape (b) a balloon (c) a battery cell (d) a magnet
39. 39.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same carton (b) the angle of the mirrors (c) the same light (d) the same mirrors

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