Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 561 · 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.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
2. 2.True or false: aluminium foil reflects light well. (a) False (b) True
3. 3.🧺 Which of these is needed for the periscope? (a) a balloon (b) a battery cell (c) vinegar (d) a pencil
4. 4.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a magnet (d) two small mirrors
6. 6.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
7. 7.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.True or false: two small mirrors is needed for the periscope. (a) True (b) False
9. 9.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 180 degrees (d) 10 degrees
10. 10.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it can float (c) to make it heavy (d) so it looks shiny
11. 11.True or false: a battery cell is needed for the periscope. (a) True (b) False
12. 12.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) black cloth (d) still clear water
15. 15.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
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 measure it (c) we change it
17. 17.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) a dull brick (d) a rough wooden board
20. 20.🔭 How many mirrors does a simple periscope use?
21. 21.True or false: a ruler is needed for the periscope. (a) True (b) False
22. 22.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
26. 26.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
27. 27.True or false: still clear water reflects light well. (a) False (b) True
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) two small mirrors (d) an empty juice carton
29. 29.⚖️ 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) True (b) False
30. 30.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) vinegar (c) turmeric powder (d) a battery cell
31. 31.⚖️ 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 carton
32. 32.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) a pencil (d) a magnet
33. 33.True or false: vinegar is not needed for the periscope. (a) False (b) True
34. 34.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a ruler (c) an empty juice carton (d) two small mirrors
36. 36.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) turmeric powder (d) a ruler
37. 37.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) black cloth
38. 38.True or false: sticky tape is not needed for the periscope. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed

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