Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 550 · 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.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) still clear water (d) a rough wooden board
2. 2.🔭 Which of these reflects light well? (a) dark soil (b) a mirror (c) black cloth (d) a rough wooden board
3. 3.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) still clear water (d) dark soil
4. 4.🔭 Which of these reflects light well? (a) aluminium foil (b) a dull brick (c) dark soil (d) a rough wooden board
5. 5.🧺 Which of these is needed for the periscope? (a) vinegar (b) an empty juice carton (c) a battery cell (d) turmeric powder
6. 6.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.True or false: still clear water reflects light well. (a) False (b) True
8. 8.🔭 How many mirrors does a simple periscope use?
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) sticky tape (d) a battery cell
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.🔭 Which of these reflects light poorly? (a) black cloth (b) still clear water (c) a shiny steel plate (d) a mirror
12. 12.🔭 How many times does light bounce off a mirror in a simple periscope?
13. 13.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) still clear water (d) black cloth
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) an empty juice carton (d) a magnet
15. 15.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🧺 Which of these is not needed for the periscope? (a) a ruler (b) vinegar (c) an empty juice carton (d) sticky tape
17. 17.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 10 degrees (d) 90 degrees
18. 18.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) sticky tape (c) a balloon (d) a magnet
19. 19.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.⚖️ 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) the same mirrors (c) the same light (d) how clear the view is
21. 21.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a battery cell (c) two small mirrors (d) a ruler
22. 22.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
23. 23.True or false: a shiny steel plate reflects light well. (a) True (b) False
24. 24.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
25. 25.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a pencil (d) a magnet
26. 26.⚖️ 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 same mirrors (c) the angle of the mirrors (d) how clear the view is
27. 27.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) to make it heavy (c) so it looks shiny (d) so it can float
28. 28.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) vinegar (d) an empty juice carton
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
31. 31.True or false: aluminium foil reflects light well. (a) False (b) True
32. 32.True or false: two small mirrors is needed for the periscope. (a) False (b) True
33. 33.🧺 Which of these is not needed for the periscope? (a) yeast (b) sticky tape (c) a ruler (d) a pencil
34. 34.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
37. 37.True or false: a battery cell is needed for the periscope. (a) False (b) True
38. 38.⚖️ 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
39. 39.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
40. 40.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) a brighter view (d) two pictures

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