Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 529 · 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.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
2. 2.🛟 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
3. 3.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) taller walls (d) the ground
4. 4.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) an empty juice carton (d) a balloon
5. 5.🧺 Which of these is needed for the periscope? (a) a ruler (b) a battery cell (c) a balloon (d) a magnet
6. 6.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) dark soil
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) two small mirrors (c) a ruler (d) sticky tape
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
10. 10.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) magnetism (d) reflection
11. 11.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) sticky tape (c) a pencil (d) a ruler
13. 13.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
14. 14.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
15. 15.⚖️ 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
16. 16.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) vinegar (d) a pencil
17. 17.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.🔭 How many mirrors does a simple periscope use?
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) two small mirrors (d) sticky tape
20. 20.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see germs (d) see in the dark
21. 21.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) a magnet (d) two small mirrors
22. 22.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) the Sun (d) a wall
23. 23.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) a battery cell (d) a pencil
24. 24.⚖️ 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) the same mirrors (c) the angle of the mirrors (d) the same light
25. 25.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
26. 26.⚖️ 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 keep it the same (b) we measure it (c) we change it
27. 27.True or false: a dull brick reflects light poorly. (a) True (b) False
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same carton (c) the same light (d) how clear the view is
30. 30.True or false: a rough wooden board reflects light well. (a) False (b) True
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) a pencil (d) a balloon
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
34. 34.⚖️ 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
35. 35.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a rough wooden board (d) dark soil
36. 36.True or false: dark soil reflects light poorly. (a) True (b) False
37. 37.True or false: a battery cell is needed for the periscope. (a) True (b) False
38. 38.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) only darkness (d) a rainbow
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.True or false: two small mirrors is needed for the periscope. (a) True (b) False

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