Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 808 · 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 is needed for the periscope? (a) vinegar (b) a magnet (c) turmeric powder (d) an empty juice carton
2. 2.True or false: aluminium foil reflects light well. (a) False (b) True
3. 3.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
4. 4.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) taller walls (d) the ground
5. 5.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a ruler (c) two small mirrors (d) a pencil
6. 6.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so light reaches the eye (d) so it looks shiny
7. 7.⚖️ 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
8. 8.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) a ruler (c) an empty juice carton (d) two small mirrors
10. 10.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a ruler (c) turmeric powder (d) a magnet
11. 11.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) aluminium foil
12. 12.🔭 Which of these reflects light well? (a) a shiny steel plate (b) dark soil (c) a rough wooden board (d) black cloth
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) vinegar (d) a pencil
14. 14.True or false: a dull brick reflects light poorly. (a) False (b) True
15. 15.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 90 degrees (d) 180 degrees
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
17. 17.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a submarine crew (d) a farmer
18. 18.True or false: a pencil is needed for the periscope. (a) True (b) False
19. 19.True or false: black cloth reflects light well. (a) True (b) False
20. 20.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
21. 21.⚖️ 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
22. 22.⚖️ 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 light (b) the same carton (c) the same mirrors (d) the angle of the mirrors
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.⚖️ 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
25. 25.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
26. 26.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.True or false: a mirror reflects light well. (a) False (b) True
28. 28.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.🔭 How many times does light bounce off a mirror in a simple periscope?
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a magnet (d) two small mirrors
31. 31.🧺 Which of these is needed for the periscope? (a) vinegar (b) two small mirrors (c) a balloon (d) a battery cell
32. 32.⚖️ 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 change it (c) we measure it
33. 33.True or false: a ruler is not needed for the periscope. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a mirror (d) black cloth
35. 35.True or false: a dull brick reflects light well. (a) False (b) True
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) an empty juice carton (d) turmeric powder
37. 37.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
38. 38.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
39. 39.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
40. 40.True or false: black cloth reflects light poorly. (a) False (b) True

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