Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 43 · 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 not needed for the periscope? (a) a ruler (b) vinegar (c) an empty juice carton (d) sticky tape
2. 2.🧺 Which of these is needed for the periscope? (a) vinegar (b) a ruler (c) turmeric powder (d) yeast
3. 3.🔭 How many times does light bounce off a mirror in a simple periscope?
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a battery cell (c) two small mirrors (d) sticky tape
5. 5.True or false: turmeric powder is needed for the periscope. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a mirror (d) a shiny steel plate
7. 7.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
8. 8.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
9. 9.True or false: a pencil is not needed for the periscope. (a) True (b) False
10. 10.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) a battery cell (d) a pencil
11. 11.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) refraction (d) magnetism
12. 12.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) dark soil (d) aluminium foil
13. 13.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) still clear water (d) a mirror
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) an empty juice carton (d) sticky tape
19. 19.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) the ground (d) nothing at all
20. 20.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) a shiny steel plate (d) still clear water
21. 21.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) a pencil (d) a magnet
22. 22.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) a dull brick (d) a rough wooden board
24. 24.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) a dull brick
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) still clear water (d) dark soil
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) vinegar
29. 29.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) a friend’s toy (d) the Sun
30. 30.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a rough wooden board (d) aluminium foil
31. 31.True or false: black cloth reflects light well. (a) False (b) True
32. 32.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
33. 33.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
34. 34.True or false: a ruler is needed for the periscope. (a) False (b) True
35. 35.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 90 degrees (d) 10 degrees
37. 37.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
38. 38.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) hear far sounds (d) see in the dark
39. 39.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) black cloth (c) aluminium foil (d) still clear water
40. 40.⚖️ 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

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