Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 567 · 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.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) a mirror (d) a shiny steel plate
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🧺 Which of these is not needed for the periscope? (a) a balloon (b) sticky tape (c) an empty juice carton (d) a pencil
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) a balloon
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a mirror (d) a dull brick
9. 9.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) a balloon (d) yeast
10. 10.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
11. 11.True or false: a battery cell is needed for the periscope. (a) True (b) False
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) vinegar (d) a pencil
13. 13.📘 Light bouncing off a mirror is called ___. (a) reflection (b) refraction (c) evaporation (d) magnetism
14. 14.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
15. 15.🔮 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
16. 16.True or false: a balloon is needed for the periscope. (a) False (b) True
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) two small mirrors (d) sticky tape
19. 19.True or false: yeast is needed for the periscope. (a) True (b) False
20. 20.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) loose glass panes (d) big wall mirrors
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a magnet (d) a ruler
22. 22.True or false: a dull brick reflects light poorly. (a) True (b) False
23. 23.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
24. 24.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
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) True (b) False
26. 26.True or false: a pencil is not needed for the periscope. (a) True (b) False
27. 27.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
28. 28.🧺 Which of these is needed for the periscope? (a) vinegar (b) a magnet (c) a ruler (d) turmeric powder
29. 29.⚖️ 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
30. 30.⚖️ 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) False (b) True
31. 31.🔭 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
32. 32.⚖️ 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 same light (d) how clear the view is
33. 33.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the periscope? (a) vinegar (b) sticky tape (c) yeast (d) turmeric powder
35. 35.🔭 How many times does light bounce off a mirror in a simple periscope?
36. 36.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
37. 37.True or false: vinegar is not needed for the periscope. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) black cloth (d) dark soil
39. 39.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
40. 40.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well

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