Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 817 · 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 a ruler for the periscope? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a ruler (d) a pencil
3. 3.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
4. 4.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) the Sun (d) a friend’s toy
5. 5.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) a mirror (d) dark soil
6. 6.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
7. 7.🔭 How many mirrors does a simple periscope use?
8. 8.⚖️ 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
9. 9.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
11. 11.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a magnet (c) an empty juice carton (d) a ruler
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) an empty juice carton (d) two small mirrors
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) how clear the view is (c) the angle of the mirrors (d) the same mirrors
14. 14.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) dark soil (d) a mirror
15. 15.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) yeast (d) a ruler
16. 16.True or false: a rough wooden board reflects light poorly. (a) False (b) True
17. 17.True or false: a shiny steel plate reflects light well. (a) False (b) True
18. 18.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) a ruler (d) an empty juice carton
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) turmeric powder (d) a ruler
22. 22.⚖️ 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) False (b) True
23. 23.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a mirror (d) a rough wooden board
24. 24.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
25. 25.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
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.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) black cloth (d) a shiny steel plate
28. 28.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 45 degrees (d) 180 degrees
29. 29.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a mirror (d) a dull brick
30. 30.⚖️ 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
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a ruler (d) yeast
33. 33.True or false: turmeric powder 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) how clear the view is (b) the same mirrors (c) the angle of the mirrors
35. 35.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) yeast (d) a battery cell
36. 36.⚖️ 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
37. 37.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) a ruler (d) a balloon
38. 38.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) black cloth (d) a rough wooden board
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) black cloth (d) a mirror

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