Periscope STEM Project Worksheet

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

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