Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 825 · 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.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
2. 2.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) vinegar (c) a battery cell (d) a balloon
3. 3.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) still clear water (d) a shiny steel plate
4. 4.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
5. 5.⚖️ 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) False (b) True
6. 6.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
8. 8.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) sticky tape (d) vinegar
9. 9.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
10. 10.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
11. 11.True or false: aluminium foil reflects light poorly. (a) True (b) False
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) two pictures (d) a rainbow
14. 14.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) aluminium foil (d) a dull brick
15. 15.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) vinegar (c) a battery cell (d) a balloon
16. 16.True or false: black cloth reflects light well. (a) False (b) True
17. 17.True or false: a shiny steel plate reflects light well. (a) False (b) True
18. 18.True or false: dark soil reflects light well. (a) True (b) False
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) two small mirrors (d) a magnet
20. 20.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
21. 21.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
22. 22.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.True or false: sticky tape is not needed for the periscope. (a) False (b) True
24. 24.⚖️ 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) how clear the view is (c) the same mirrors (d) the same light
25. 25.⚖️ 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) False (b) True
26. 26.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) a battery cell
27. 27.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
28. 28.🔭 How many mirrors does a simple periscope use?
29. 29.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) False (b) True
31. 31.True or false: still clear water reflects light well. (a) True (b) False
32. 32.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
33. 33.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) a friend’s toy (d) the Sun
34. 34.⚖️ 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
35. 35.⚖️ 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 light (b) the angle of the mirrors (c) the same mirrors (d) the object we look at
36. 36.🔭 Which of these reflects light poorly? (a) black cloth (b) aluminium foil (c) a shiny steel plate (d) a mirror
37. 37.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) a rough wooden board
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) yeast (c) a ruler (d) an empty juice carton
40. 40.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection

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