Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 928 · 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 angle of the mirrors is the one thing we change. (a) True (b) False
2. 2.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) yeast (d) a ruler
4. 4.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
5. 5.⚖️ 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
6. 6.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a balloon (d) sticky tape
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) a ruler (d) a balloon
10. 10.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) still clear water (d) dark soil
11. 11.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a battery cell (c) a pencil (d) sticky tape
13. 13.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.True or false: dark soil reflects light well. (a) False (b) True
15. 15.True or false: a rough wooden board reflects light well. (a) True (b) False
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
18. 18.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
19. 19.⚖️ 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
20. 20.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) a balloon (d) sticky tape
21. 21.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
22. 22.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) taller walls (d) only short walls
23. 23.True or false: a magnet is not needed for the periscope. (a) False (b) True
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
26. 26.🔭 How many times does light bounce off a mirror in a simple periscope?
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same light (c) the same carton (d) the object we look at
28. 28.True or false: a shiny steel plate reflects light well. (a) True (b) False
29. 29.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) an empty juice carton (d) turmeric powder
30. 30.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 90 degrees (d) 180 degrees
31. 31.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) a rough wooden board (d) black cloth
32. 32.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) refraction (d) magnetism
33. 33.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) the Sun (d) a wall
34. 34.⚖️ 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 carton (b) how clear the view is (c) the same mirrors (d) the angle of the mirrors
35. 35.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.🔭 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
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) a dull brick (d) a shiny steel plate

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