Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 579 · 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 angle of the mirrors”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
5. 5.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🔍 Which is the odd one out? (a) a dull brick (b) still clear water (c) aluminium foil (d) a shiny steel plate
7. 7.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) yeast (c) sticky tape (d) an empty juice carton
9. 9.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
10. 10.🧺 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 pencil
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) two small mirrors (c) a ruler (d) an empty juice carton
12. 12.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
13. 13.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
14. 14.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) in colour (d) much bigger
15. 15.🔭 How many mirrors does a simple periscope use?
16. 16.⚖️ 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
17. 17.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) two small mirrors (c) a pencil (d) sticky tape
18. 18.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) a mirror (d) aluminium foil
19. 19.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
20. 20.🔭 Who uses a periscope to look above the water? (a) a baker (b) a submarine crew (c) a farmer (d) a pilot in a plane
21. 21.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a rough wooden board (d) a shiny steel plate
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same mirrors (b) the same light (c) the object we look at (d) the angle of the mirrors
23. 23.True or false: a mirror reflects light well. (a) False (b) True
24. 24.🧺 Which of these is needed for the periscope? (a) a pencil (b) turmeric powder (c) yeast (d) a magnet
25. 25.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a dull brick (d) a rough wooden board
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same light (c) how clear the view is (d) the same carton
27. 27.⚖️ 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 measure it (c) we keep it the same
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) black cloth (d) a mirror
30. 30.True or false: a magnet is not needed for the periscope. (a) True (b) False
31. 31.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.🔭 How many times does light bounce off a mirror in a simple periscope?
33. 33.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
34. 34.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 180 degrees (d) 90 degrees
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) an empty juice carton (c) a pencil (d) a ruler
36. 36.True or false: a balloon is not needed for the periscope. (a) False (b) True
37. 37.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
38. 38.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) the ground (d) taller walls
39. 39.🔭 Which of these reflects light poorly? (a) a dull brick (b) a mirror (c) still clear water (d) aluminium foil
40. 40.True or false: sticky tape is needed for the periscope. (a) False (b) True

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