Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 979 · 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.True or false: turmeric powder is needed for the periscope. (a) False (b) True
2. 2.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) two pictures (d) a brighter view
3. 3.⚖️ 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 measure it (c) we change it
4. 4.True or false: vinegar is not needed for the periscope. (a) True (b) False
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) a pencil (d) a battery cell
6. 6.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) a dull brick (d) aluminium foil
7. 7.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a pilot in a plane (c) a baker (d) a farmer
8. 8.True or false: a battery cell is needed for the periscope. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a shiny steel plate (d) a dull brick
10. 10.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) black cloth (d) still clear water
11. 11.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) an empty juice carton (c) sticky tape (d) a ruler
12. 12.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
13. 13.True or false: a shiny steel plate reflects light well. (a) True (b) False
14. 14.⚖️ 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 measure it (c) we keep it the same
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the angle of the mirrors (c) the object we look at (d) the same carton
16. 16.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
17. 17.🔍 Which is the odd one out? (a) a mirror (b) a rough wooden board (c) aluminium foil (d) a shiny steel plate
18. 18.🔭 How many times does light bounce off a mirror in a simple periscope?
19. 19.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
20. 20.🔭 How many mirrors does a simple periscope use?
21. 21.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) a friend’s toy (d) the Sun
22. 22.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
23. 23.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
24. 24.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
25. 25.True or false: aluminium foil reflects light poorly. (a) True (b) False
26. 26.⚖️ 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
27. 27.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) yeast (d) sticky tape
28. 28.True or false: a magnet is needed for the periscope. (a) True (b) False
29. 29.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a mirror (d) dark soil
30. 30.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
31. 31.⚖️ 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
32. 32.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
33. 33.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) sticky tape (c) vinegar (d) a magnet
34. 34.🧺 Which of these is needed for the periscope? (a) a battery cell (b) an empty juice carton (c) a balloon (d) yeast
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a ruler (c) two small mirrors (d) an empty juice carton
36. 36.🧺 Which of these is needed for the periscope? (a) a balloon (b) two small mirrors (c) a magnet (d) turmeric powder
37. 37.⚖️ 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 angle of the mirrors (c) the same light
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) a ruler (c) a pencil (d) an empty juice carton
39. 39.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a mirror (c) a shiny steel plate (d) aluminium foil
40. 40.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed

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