Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 909 · 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 same carton is kept the same. (a) False (b) True
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a ruler (d) a battery cell
3. 3.True or false: a mirror reflects light poorly. (a) True (b) False
4. 4.🔭 How many mirrors does a simple periscope use?
5. 5.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a mirror (d) aluminium foil
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) plastic safety mirrors (d) loose glass panes
7. 7.⚖️ 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 keep it the same (c) we measure it
8. 8.True or false: a shiny steel plate reflects light well. (a) False (b) True
9. 9.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
10. 10.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
11. 11.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) black cloth (d) a rough wooden board
12. 12.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) hear far sounds (d) see over a wall
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) sticky tape (d) a balloon
14. 14.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) dark soil (d) aluminium foil
15. 15.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) aluminium foil (d) a rough wooden board
16. 16.🔭 How many times does light bounce off a mirror in a simple periscope?
17. 17.🧺 Which of these is needed for the periscope? (a) vinegar (b) sticky tape (c) a battery cell (d) turmeric powder
18. 18.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a ruler (c) a balloon (d) turmeric powder
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) a pencil (d) sticky tape
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) vinegar (d) a pencil
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the same carton (d) the same mirrors
22. 22.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) a magnet (d) two small mirrors
23. 23.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a pilot in a plane (d) a farmer
24. 24.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 90 degrees (d) 180 degrees
25. 25.True or false: dark soil reflects light poorly. (a) True (b) False
26. 26.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) evaporation (d) magnetism
27. 27.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a balloon (c) a ruler (d) sticky tape
28. 28.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.True or false: a dull brick reflects light poorly. (a) False (b) True
30. 30.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) a pencil (d) a battery cell
31. 31.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
32. 32.⚖️ 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) True (b) False
33. 33.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
34. 34.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) black cloth (d) aluminium foil
35. 35.🧺 Which of these is needed for the periscope? (a) yeast (b) two small mirrors (c) a magnet (d) vinegar
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) False (b) True
37. 37.True or false: sticky tape is needed for the periscope. (a) True (b) False
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) an empty juice carton (c) two small mirrors (d) sticky tape
39. 39.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
40. 40.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) two small mirrors (c) a ruler (d) an empty juice carton

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