Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 248 · 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) sticky tape (b) an empty juice carton (c) a battery cell (d) two small mirrors
2. 2.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) plastic safety mirrors (d) broken glass bits
3. 3.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
4. 4.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
5. 5.True or false: black cloth reflects light well. (a) True (b) False
6. 6.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) only darkness (d) a rainbow
7. 7.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) dark soil (d) black cloth
8. 8.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.⚖️ 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 measure it (b) we keep it the same (c) we change it
10. 10.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) vinegar (d) a magnet
11. 11.True or false: a rough wooden board reflects light well. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a dull brick (d) a shiny steel plate
13. 13.True or false: a mirror reflects light poorly. (a) True (b) False
14. 14.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a submarine crew (c) a baker (d) a pilot in a plane
15. 15.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) a shiny steel plate (d) a mirror
16. 16.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) taller walls (d) only short walls
18. 18.🔭 How many times does light bounce off a mirror in a simple periscope?
19. 19.⚖️ 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 carton (c) how clear the view is
20. 20.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
21. 21.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 45 degrees (d) 10 degrees
22. 22.⚖️ 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) how clear the view is (c) the object we look at (d) the angle of the mirrors
23. 23.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.🧺 Which of these is not needed for the periscope? (a) a ruler (b) turmeric powder (c) two small mirrors (d) an empty juice carton
25. 25.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🔭 How many mirrors does a simple periscope use?
27. 27.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) black cloth (d) a mirror
28. 28.True or false: a rough wooden board reflects light poorly. (a) False (b) True
29. 29.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a pencil (c) an empty juice carton (d) two small mirrors
30. 30.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) aluminium foil (d) still clear water
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False
33. 33.True or false: two small mirrors is needed for the periscope. (a) True (b) False
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) dark soil
39. 39.⚖️ 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 measure it (c) we keep it the same
40. 40.True or false: a shiny steel plate reflects light well. (a) False (b) True

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