Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 913 · 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.🔭 How many mirrors does a simple periscope use?
2. 2.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) the ground (d) taller walls
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) an empty juice carton (d) two small mirrors
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same mirrors (c) the same carton (d) the object we look at
5. 5.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) a shiny steel plate (d) aluminium foil
6. 6.⚖️ 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
7. 7.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
8. 8.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
9. 9.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a dull brick (d) a mirror
10. 10.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
11. 11.⚖️ 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 change it (b) we keep it the same (c) we measure it
12. 12.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
13. 13.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
14. 14.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
15. 15.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a dull brick (d) a shiny steel plate
16. 16.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a balloon (d) a pencil
18. 18.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
19. 19.True or false: a dull brick reflects light well. (a) False (b) True
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a pencil (d) a magnet
21. 21.⚖️ 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 same carton (c) the angle of the mirrors
22. 22.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
24. 24.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) reflection (d) evaporation
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
26. 26.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a shiny steel plate (d) a dull brick
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
28. 28.🔭 Which of these reflects light well? (a) aluminium foil (b) a dull brick (c) a rough wooden board (d) dark soil
29. 29.🔭 How many times does light bounce off a mirror in a simple periscope?
30. 30.True or false: a shiny steel plate reflects light well. (a) True (b) False
31. 31.⚖️ 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 measure it (b) we keep it the same (c) we change it
32. 32.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a rough wooden board (d) a shiny steel plate
33. 33.True or false: a mirror reflects light well. (a) False (b) True
34. 34.True or false: turmeric powder is needed for the periscope. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a dull brick (b) aluminium foil (c) black cloth (d) a rough wooden board
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) how clear the view is (c) the same carton (d) the same light
37. 37.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a dull brick (b) still clear water (c) black cloth (d) dark soil
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a pencil (c) a ruler (d) two small mirrors
40. 40.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed

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