Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 462 · 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 mirrors”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
3. 3.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 45 degrees (d) 180 degrees
4. 4.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) magnetism (d) reflection
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
6. 6.True or false: sticky tape is needed for the periscope. (a) False (b) True
7. 7.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
8. 8.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) a dull brick
9. 9.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
10. 10.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
11. 11.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) plastic safety mirrors (d) big wall mirrors
13. 13.🔭 Which of these reflects light well? (a) black cloth (b) still clear water (c) a rough wooden board (d) dark soil
14. 14.🔭 Which of these reflects light poorly? (a) black cloth (b) still clear water (c) aluminium foil (d) a shiny steel plate
15. 15.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a baker (d) a submarine crew
16. 16.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
17. 17.True or false: a ruler is not needed for the periscope. (a) False (b) True
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the same light
19. 19.True or false: still clear water reflects light well. (a) False (b) True
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a pencil (d) a battery cell
21. 21.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a pencil (c) an empty juice carton (d) a ruler
22. 22.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) an empty juice carton (d) vinegar
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.🔭 Does a rough wooden board 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? What do we do with “how clear the view is”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a mirror (d) aluminium foil
29. 29.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
30. 30.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) a rough wooden board (d) a shiny steel plate
31. 31.🔭 Which of these reflects light well? (a) a dull brick (b) a shiny steel plate (c) dark soil (d) black cloth
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.🧺 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 magnet
34. 34.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) sticky tape (d) turmeric powder
35. 35.🧺 Which of these is needed for the periscope? (a) a ruler (b) a magnet (c) vinegar (d) a balloon
36. 36.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
37. 37.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) a pencil (d) an empty juice carton
39. 39.🔭 How many mirrors does a simple periscope use?
40. 40.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) sticky tape (c) a pencil (d) an empty juice carton

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