Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 863 · 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? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.True or false: dark soil reflects light well. (a) True (b) False
3. 3.⚖️ 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
4. 4.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) a rough wooden board
5. 5.⚖️ 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 keep it the same (b) we change it (c) we measure it
6. 6.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) dark soil (d) a dull brick
7. 7.🔭 How many mirrors does a simple periscope use?
8. 8.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
9. 9.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
10. 10.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) broken glass bits (c) big wall mirrors (d) loose glass panes
11. 11.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) refraction (d) evaporation
12. 12.⚖️ 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 carton (c) the object we look at (d) how clear the view is
13. 13.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) a mirror (d) dark soil
15. 15.⚖️ 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
16. 16.🔮 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
17. 17.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) dark soil
18. 18.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) an empty juice carton (d) a magnet
20. 20.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) a pencil (d) a ruler
21. 21.⚖️ 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
22. 22.🧺 Do we need an empty juice carton 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 object we look at is kept the same. (a) True (b) False
24. 24.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
25. 25.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.⚖️ 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
27. 27.⚖️ 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) True (b) False
28. 28.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a farmer (d) a submarine crew
30. 30.True or false: black cloth reflects light poorly. (a) True (b) False
31. 31.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
32. 32.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a rough wooden board
33. 33.True or false: a dull brick reflects light well. (a) False (b) True
34. 34.🧺 Which of these is needed for the periscope? (a) a magnet (b) two small mirrors (c) yeast (d) a balloon
35. 35.⚖️ 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 change it (b) we measure it (c) we keep it the same
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) turmeric powder (d) a ruler
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) an empty juice carton (c) two small mirrors (d) a ruler
38. 38.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) black cloth (d) a rough wooden board
39. 39.⚖️ 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
40. 40.🔭 Which of these reflects light poorly? (a) still clear water (b) a dull brick (c) aluminium foil (d) a shiny steel plate

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