Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 235 · 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.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) nothing at all (d) taller walls
2. 2.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same light (c) how clear the view is (d) the object we look at
4. 4.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a baker (d) a submarine crew
5. 5.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) turmeric powder (d) sticky tape
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) yeast (d) two small mirrors
7. 7.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
8. 8.⚖️ 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 measure it (c) we keep it the same
9. 9.🔮 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
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
11. 11.True or false: turmeric powder is needed for the periscope. (a) True (b) False
12. 12.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) aluminium foil (d) a dull brick
13. 13.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) the Sun (d) a wall
14. 14.True or false: a rough wooden board reflects light poorly. (a) True (b) False
15. 15.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) turmeric powder (d) a pencil
16. 16.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) a dull brick (d) a rough wooden board
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
19. 19.⚖️ 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
20. 20.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
21. 21.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 10 degrees (d) 45 degrees
22. 22.True or false: a dull brick reflects light poorly. (a) True (b) False
23. 23.🔭 How many times does light bounce off a mirror in a simple periscope?
24. 24.⚖️ 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 change it (b) we keep it the same (c) we measure it
25. 25.True or false: aluminium foil reflects light poorly. (a) True (b) False
26. 26.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
27. 27.True or false: sticky tape is not needed for the periscope. (a) False (b) True
28. 28.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a dull brick (c) dark soil (d) a rough wooden board
29. 29.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
30. 30.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.True or false: two small mirrors is needed for the periscope. (a) True (b) False
32. 32.True or false: a rough wooden board reflects light well. (a) False (b) True
33. 33.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) a rough wooden board (d) a shiny steel plate
35. 35.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) an empty juice carton (d) a pencil
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
38. 38.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) plastic safety mirrors (d) loose glass panes
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
40. 40.⚖️ 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

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