Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 801 · 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.True or false: sticky tape is not needed for the periscope. (a) False (b) True
2. 2.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
3. 3.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) a mirror (d) a shiny steel plate
4. 4.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a balloon (c) a ruler (d) a pencil
5. 5.⚖️ 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 light (d) how clear the view is
6. 6.🧺 Which of these is needed for the periscope? (a) yeast (b) a magnet (c) a ruler (d) a balloon
7. 7.True or false: a mirror reflects light poorly. (a) True (b) False
8. 8.⚖️ 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
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
11. 11.True or false: a balloon is not needed for the periscope. (a) True (b) False
12. 12.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
14. 14.True or false: a ruler is not needed for the periscope. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) still clear water (d) a mirror
16. 16.🔭 Which of these reflects light well? (a) a dull brick (b) a shiny steel plate (c) a rough wooden board (d) black cloth
17. 17.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
18. 18.True or false: yeast is not needed for the periscope. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) black cloth (d) a mirror
20. 20.⚖️ 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
21. 21.True or false: dark soil reflects light poorly. (a) False (b) True
22. 22.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
23. 23.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
25. 25.True or false: vinegar is not needed for the periscope. (a) True (b) False
26. 26.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 45 degrees (d) 180 degrees
27. 27.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
28. 28.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
29. 29.True or false: still clear water reflects light well. (a) True (b) False
30. 30.True or false: a dull brick reflects light well. (a) False (b) True
31. 31.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a farmer (d) a pilot in a plane
32. 32.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) aluminium foil (d) a dull brick
35. 35.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
36. 36.🧺 Which of these is needed for the periscope? (a) a pencil (b) a magnet (c) turmeric powder (d) a balloon
37. 37.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
38. 38.⚖️ 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) True (b) False
39. 39.🧺 Which of these is not needed for the periscope? (a) a ruler (b) turmeric powder (c) a pencil (d) an empty juice carton
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same light (c) how clear the view is (d) the same carton

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