Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 26 · 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 of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) turmeric powder (d) a pencil
2. 2.⚖️ 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
3. 3.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
4. 4.🧺 Which of these is needed for the periscope? (a) a balloon (b) an empty juice carton (c) a magnet (d) vinegar
5. 5.True or false: a ruler is not needed for the periscope. (a) True (b) False
6. 6.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) turmeric powder (d) an empty juice carton
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a farmer (d) a baker
10. 10.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a mirror (d) dark soil
11. 11.⚖️ 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 mirrors (b) the object we look at (c) the same carton (d) the angle of the mirrors
12. 12.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) a ruler (d) sticky tape
14. 14.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) still clear water (d) black cloth
16. 16.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
18. 18.True or false: black cloth reflects light well. (a) True (b) False
19. 19.True or false: a shiny steel plate reflects light well. (a) False (b) True
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a battery cell (d) sticky tape
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) an empty juice carton (d) a pencil
22. 22.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
23. 23.⚖️ 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
24. 24.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) a friend’s toy (d) the Sun
25. 25.True or false: a rough wooden board reflects light poorly. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a shiny steel plate (d) aluminium foil
27. 27.True or false: a rough wooden board reflects light well. (a) False (b) True
28. 28.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
29. 29.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a magnet (c) a battery cell (d) a balloon
30. 30.⚖️ 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 object we look at (c) how clear the view is (d) the same light
31. 31.True or false: a magnet is needed for the periscope. (a) False (b) True
32. 32.True or false: still clear water reflects light well. (a) True (b) False
33. 33.True or false: aluminium foil reflects light poorly. (a) True (b) False
34. 34.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the periscope? (a) sticky tape (b) vinegar (c) a magnet (d) a balloon
36. 36.🔭 Which of these reflects light well? (a) a mirror (b) a rough wooden board (c) black cloth (d) a dull brick
37. 37.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) a rough wooden board
38. 38.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) the ground (d) only short walls
39. 39.⚖️ 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 measure it (b) we change it (c) we keep it the same
40. 40.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a magnet (c) sticky tape (d) an empty juice carton

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