Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 887 · 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.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a rainbow (d) a brighter view
4. 4.🔭 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
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same carton (c) the same light (d) the angle of the mirrors
6. 6.🔭 How many mirrors does a simple periscope use?
7. 7.⚖️ 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) the same light (c) how clear the view is
8. 8.🔮 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
9. 9.True or false: black cloth reflects light well. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) dark soil (d) still clear water
11. 11.True or false: vinegar is not needed for the periscope. (a) True (b) False
12. 12.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the same carton (c) the angle of the mirrors
14. 14.⚖️ 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
15. 15.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
16. 16.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 10 degrees (d) 45 degrees
17. 17.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
18. 18.🔭 How many times does light bounce off a mirror in a simple periscope?
19. 19.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) aluminium foil (d) black cloth
20. 20.True or false: a magnet is not needed for the periscope. (a) False (b) True
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) the same carton (c) the same mirrors (d) how clear the view is
22. 22.True or false: a magnet is needed for the periscope. (a) False (b) True
23. 23.True or false: dark soil reflects light well. (a) False (b) True
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
25. 25.True or false: a rough wooden board reflects light poorly. (a) True (b) False
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a balloon (d) a ruler
27. 27.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) a dull brick (d) a shiny steel plate
28. 28.True or false: two small mirrors is needed for the periscope. (a) True (b) False
29. 29.True or false: a dull brick reflects light poorly. (a) True (b) False
30. 30.True or false: a mirror reflects light well. (a) False (b) True
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) two small mirrors (c) an empty juice carton (d) sticky tape
32. 32.⚖️ 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
33. 33.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a balloon (c) an empty juice carton (d) two small mirrors
34. 34.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) black cloth
35. 35.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) a shiny steel plate
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a battery cell (c) two small mirrors (d) sticky tape
37. 37.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) still clear water (d) a rough wooden board
38. 38.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
40. 40.True or false: a battery cell is needed for the periscope. (a) True (b) False

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