Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 131 · 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 carton is kept the same. (a) True (b) False
2. 2.⚖️ 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 measure it (c) we change it
3. 3.🔭 How many times does light bounce off a mirror in a simple periscope?
4. 4.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 45 degrees (d) 90 degrees
5. 5.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) black cloth (d) dark soil
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
7. 7.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
9. 9.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) a dull brick (d) a mirror
10. 10.🔭 Which of these reflects light poorly? (a) a dull brick (b) aluminium foil (c) a mirror (d) a shiny steel plate
11. 11.True or false: a ruler is needed for the periscope. (a) False (b) True
12. 12.True or false: dark soil reflects light well. (a) False (b) True
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the same light
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 same mirrors (b) the same light (c) the same carton (d) the angle of the mirrors
15. 15.🔭 Which of these reflects light well? (a) still clear water (b) a rough wooden board (c) dark soil (d) black cloth
16. 16.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
17. 17.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a baker (d) a pilot in a plane
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a pencil (d) a battery cell
20. 20.True or false: a balloon is not needed for the periscope. (a) False (b) True
21. 21.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a balloon (c) two small mirrors (d) a pencil
23. 23.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
24. 24.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
27. 27.⚖️ 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 measure it (c) we keep it the same
28. 28.⚖️ 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) the object we look at (d) how clear the view is
29. 29.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
30. 30.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) a dull brick (d) aluminium foil
31. 31.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) sticky tape (d) a balloon
32. 32.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.🔭 How many mirrors does a simple periscope use?
34. 34.⚖️ 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
35. 35.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
37. 37.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
38. 38.🧺 Which of these is needed for the periscope? (a) a balloon (b) an empty juice carton (c) turmeric powder (d) a magnet
39. 39.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) a rough wooden board (d) still clear water
40. 40.True or false: sticky tape is not needed for the periscope. (a) False (b) True

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