Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 491 · 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.⚖️ 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
2. 2.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) a friend’s toy (d) the Sun
3. 3.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) taller walls (d) nothing at all
4. 4.True or false: aluminium foil reflects light poorly. (a) False (b) True
5. 5.True or false: a magnet is not needed for the periscope. (a) True (b) False
6. 6.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
7. 7.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) a ruler (d) yeast
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) a ruler (d) turmeric powder
10. 10.True or false: yeast is not needed for the periscope. (a) True (b) False
11. 11.⚖️ 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) True (b) False
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
13. 13.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
14. 14.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 180 degrees (d) 10 degrees
15. 15.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
16. 16.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) yeast (d) a battery cell
17. 17.🧺 Which of these is not needed for the periscope? (a) vinegar (b) two small mirrors (c) an empty juice carton (d) a pencil
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) two small mirrors (d) a magnet
19. 19.⚖️ 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 measure it (c) we change it
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 light (b) the same carton (c) the same mirrors (d) how clear the view is
21. 21.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a shiny steel plate (d) dark soil
22. 22.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a rough wooden board (d) a mirror
23. 23.True or false: sticky tape is not needed for the periscope. (a) True (b) False
24. 24.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) True (b) False
27. 27.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
28. 28.True or false: a balloon is needed for the periscope. (a) True (b) False
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
30. 30.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same light (c) the angle of the mirrors (d) the object we look at
32. 32.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
33. 33.🔭 How many mirrors does a simple periscope use?
34. 34.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) aluminium foil (d) dark soil
36. 36.⚖️ 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 keep it the same (b) we change it (c) we measure it
37. 37.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) dark soil
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) vinegar (d) sticky tape
39. 39.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) a shiny steel plate
40. 40.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) aluminium foil (d) a dull brick

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