Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 228 · 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 is the odd one out? (a) dark soil (b) a mirror (c) a dull brick (d) a rough wooden board
2. 2.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a dull brick (c) a mirror (d) aluminium foil
3. 3.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) yeast (d) a pencil
4. 4.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) a balloon (d) two small mirrors
5. 5.⚖️ 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
6. 6.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
7. 7.True or false: dark soil reflects light well. (a) False (b) True
8. 8.True or false: a mirror reflects light well. (a) False (b) True
9. 9.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
10. 10.⚖️ 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 carton (c) the object we look at (d) how clear the view is
11. 11.⚖️ 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
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.🔭 Which of these reflects light well? (a) dark soil (b) a shiny steel plate (c) black cloth (d) a dull brick
14. 14.⚖️ 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
15. 15.⚖️ 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) the same light (c) how clear the view is
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the angle of the mirrors (c) the same light (d) the same carton
17. 17.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) sticky tape (d) a battery cell
18. 18.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
19. 19.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a rainbow (d) a brighter view
20. 20.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection
21. 21.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.⚖️ 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
23. 23.True or false: a rough wooden board reflects light well. (a) True (b) False
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.⚖️ 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
26. 26.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) still clear water (d) black cloth
28. 28.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) still clear water (d) a mirror
29. 29.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
30. 30.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) a mirror (d) still clear water
31. 31.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 90 degrees (d) 10 degrees
32. 32.True or false: still clear water reflects light well. (a) False (b) True
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) two small mirrors (d) a magnet
34. 34.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a rough wooden board (d) a shiny steel plate
35. 35.True or false: yeast is not needed for the periscope. (a) False (b) True
36. 36.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) plastic safety mirrors (d) big wall mirrors
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) how clear the view is (c) the angle of the mirrors
39. 39.🧺 Which of these is needed for the periscope? (a) vinegar (b) an empty juice carton (c) a battery cell (d) yeast
40. 40.🔭 How many times does light bounce off a mirror in a simple periscope?

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