Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 968 · 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.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a submarine crew (d) a pilot in a plane
2. 2.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) a dull brick (d) aluminium foil
3. 3.⚖️ 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) False (b) True
4. 4.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) dark soil (d) a dull brick
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a magnet (d) a pencil
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
8. 8.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) yeast (d) sticky tape
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) two small mirrors (d) a balloon
10. 10.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so it can float (d) so light reaches the eye
11. 11.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) a rough wooden board
12. 12.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.True or false: turmeric powder is needed for the periscope. (a) False (b) True
14. 14.🔭 How many times does light bounce off a mirror in a simple periscope?
15. 15.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) big wall mirrors (d) broken glass bits
17. 17.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) a dull brick (d) dark soil
18. 18.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) black cloth (d) still clear water
19. 19.⚖️ 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
20. 20.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) turmeric powder (d) a ruler
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the same mirrors (d) the same carton
22. 22.True or false: a mirror reflects light poorly. (a) False (b) True
23. 23.🧺 Which of these is needed for the periscope? (a) yeast (b) a pencil (c) a battery cell (d) a magnet
24. 24.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) two pictures (d) a rainbow
26. 26.True or false: sticky tape is needed for the periscope. (a) False (b) True
27. 27.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) black cloth (c) still clear water (d) a mirror
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) an empty juice carton (c) sticky tape (d) two small mirrors
31. 31.True or false: black cloth reflects light poorly. (a) False (b) True
32. 32.⚖️ 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 measure it (b) we change it (c) we keep it the same
33. 33.True or false: a shiny steel plate reflects light well. (a) True (b) False
34. 34.🔭 How many mirrors does a simple periscope use?
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) vinegar (d) two small mirrors
36. 36.True or false: yeast is not needed for the periscope. (a) False (b) True
37. 37.True or false: dark soil reflects light poorly. (a) False (b) True
38. 38.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) refraction (d) evaporation
39. 39.True or false: yeast is needed for the periscope. (a) False (b) True
40. 40.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed

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