Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 215 · 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) two small mirrors (b) sticky tape (c) a magnet (d) a ruler
2. 2.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
3. 3.🔍 Which is the odd one out? (a) a shiny steel plate (b) a dull brick (c) a rough wooden board (d) black cloth
4. 4.🔭 How many mirrors does a simple periscope use?
5. 5.⚖️ 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 change it (c) we measure it
6. 6.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) still clear water (d) dark soil
7. 7.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
8. 8.🔮 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
9. 9.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
11. 11.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) aluminium foil (d) a mirror
12. 12.⚖️ 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
13. 13.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.True or false: a ruler is not needed for the periscope. (a) False (b) True
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) two small mirrors (d) vinegar
16. 16.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) still clear water (d) a rough wooden board
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) yeast (d) sticky tape
18. 18.⚖️ 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 object we look at
19. 19.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) an empty juice carton (d) yeast
20. 20.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
21. 21.⚖️ 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) the same light (c) how clear the view is (d) the angle of the mirrors
22. 22.⚖️ 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
23. 23.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
24. 24.⚖️ 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
25. 25.True or false: a mirror reflects light well. (a) False (b) True
26. 26.True or false: yeast is needed for the periscope. (a) False (b) True
27. 27.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) a dull brick
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.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) aluminium foil (d) dark soil
31. 31.⚖️ 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 measure it (c) we keep it the same
32. 32.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) an empty juice carton (d) a balloon
33. 33.True or false: yeast is not needed for the periscope. (a) False (b) True
34. 34.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the periscope? (a) a magnet (b) sticky tape (c) vinegar (d) yeast
36. 36.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) black cloth (d) still clear water
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 mirrors (b) the same carton (c) the same light (d) the angle of the mirrors
38. 38.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) an empty juice carton (d) a battery cell
39. 39.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) a tree (d) the Sun
40. 40.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a dull brick (d) aluminium foil

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