Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 133 · 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? True or false: the same mirrors is what we measure. (a) False (b) True
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) an empty juice carton (d) a pencil
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) yeast (d) two small mirrors
4. 4.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
5. 5.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) sticky tape (d) vinegar
6. 6.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) yeast (c) two small mirrors (d) a ruler
7. 7.🔭 How many mirrors does a simple periscope use?
8. 8.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) two pictures (d) a brighter view
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
10. 10.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) black cloth (d) still clear water
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.True or false: yeast is needed for the periscope. (a) False (b) True
13. 13.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 180 degrees (d) 10 degrees
14. 14.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) aluminium foil (d) a dull brick
15. 15.⚖️ 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 same mirrors (c) the angle of the mirrors
16. 16.⚖️ 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
17. 17.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) still clear water (d) a mirror
18. 18.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) the ground (d) taller walls
19. 19.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
20. 20.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) dark soil (b) aluminium foil (c) a mirror (d) still clear water
22. 22.True or false: a pencil is needed for the periscope. (a) False (b) True
23. 23.True or false: black cloth reflects light well. (a) True (b) False
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
25. 25.⚖️ 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 same light (c) how clear the view is (d) the angle of the mirrors
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) a shiny steel plate (d) still clear water
29. 29.⚖️ 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 change it (b) we keep it the same (c) we measure it
30. 30.⚖️ 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 keep it the same (b) we measure it (c) we change it
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
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.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a battery cell (d) two small mirrors
34. 34.True or false: a balloon is not needed for the periscope. (a) False (b) True
35. 35.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
36. 36.🔭 How many times does light bounce off a mirror in a simple periscope?
37. 37.⚖️ 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 mirrors (d) the same light
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) black cloth (d) a rough wooden board
40. 40.True or false: sticky tape is not needed for the periscope. (a) True (b) False

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