Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 409 · 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.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) hear far sounds (d) see in the dark
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) a ruler (d) an empty juice carton
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
5. 5.🔭 Which of these reflects light well? (a) a mirror (b) dark soil (c) a rough wooden board (d) black cloth
6. 6.⚖️ 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
7. 7.⚖️ 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 change it (c) we keep it the same
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a balloon (d) a ruler
9. 9.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.🧺 Which of these is needed for the periscope? (a) yeast (b) a magnet (c) a ruler (d) a balloon
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 measure it (b) we keep it the same (c) we change it
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) a pencil (d) two small mirrors
13. 13.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
14. 14.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
15. 15.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
16. 16.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) black cloth (d) a dull brick
17. 17.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) dark soil (d) a shiny steel plate
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
19. 19.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a rough wooden board (d) still clear water
20. 20.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
21. 21.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
22. 22.True or false: black cloth reflects light poorly. (a) False (b) True
23. 23.⚖️ 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 object we look at (c) the same mirrors (d) the angle of the mirrors
24. 24.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) aluminium foil (d) black cloth
25. 25.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) a tree (d) the Sun
26. 26.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a dull brick
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) an empty juice carton (c) a pencil (d) a ruler
28. 28.⚖️ 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 mirrors (c) the same light (d) how clear the view is
29. 29.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
30. 30.True or false: a balloon is needed for the periscope. (a) True (b) False
31. 31.⚖️ 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) the angle of the mirrors (c) how clear the view is
32. 32.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a balloon (c) yeast (d) vinegar
33. 33.True or false: a pencil is needed for the periscope. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) a rough wooden board (d) black cloth
35. 35.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
37. 37.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
38. 38.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 90 degrees (d) 10 degrees
39. 39.🧺 Which of these is needed for the periscope? (a) a magnet (b) turmeric powder (c) an empty juice carton (d) yeast
40. 40.🔭 Which of these reflects light poorly? (a) a mirror (b) black cloth (c) aluminium foil (d) a shiny steel plate

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