Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 122 · 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 light”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) turmeric powder (d) two small mirrors
3. 3.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a balloon (d) a ruler
4. 4.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
5. 5.True or false: a ruler is needed for the periscope. (a) False (b) True
6. 6.True or false: still clear water reflects light well. (a) True (b) False
7. 7.⚖️ 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 same carton
8. 8.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
9. 9.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
10. 10.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) the ground (c) nothing at all (d) only short walls
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a ruler (d) yeast
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) sticky tape (d) a balloon
13. 13.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) vinegar (d) a pencil
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same mirrors (c) the same carton (d) the object we look at
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) a magnet (d) a ruler
16. 16.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
17. 17.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
18. 18.🔭 How many mirrors does a simple periscope use?
19. 19.⚖️ 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
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.🔍 Which is the odd one out? (a) a rough wooden board (b) still clear water (c) a mirror (d) a shiny steel plate
23. 23.🧺 Do we need a pencil 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 same carton”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.True or false: a magnet is not needed for the periscope. (a) False (b) True
26. 26.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) black cloth (d) a dull brick
27. 27.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) black cloth (d) dark soil
28. 28.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a balloon (c) a ruler (d) sticky tape
29. 29.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🔭 How many times does light bounce off a mirror in a simple periscope?
31. 31.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
32. 32.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
33. 33.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
34. 34.True or false: turmeric powder is needed for the periscope. (a) False (b) True
35. 35.⚖️ 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
36. 36.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
37. 37.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) black cloth (d) a shiny steel plate
38. 38.True or false: aluminium foil reflects light poorly. (a) True (b) False
39. 39.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
40. 40.⚖️ 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 change it (b) we keep it the same (c) we measure it

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