Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 247 · 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? Which of these is the one thing we change? (a) the same mirrors (b) the same light (c) the angle of the mirrors (d) the same carton
2. 2.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
3. 3.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
4. 4.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
5. 5.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) vinegar (c) a pencil (d) sticky tape
6. 6.🧺 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) a pencil
7. 7.🔭 How many times does light bounce off a mirror in a simple periscope?
8. 8.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) the ground (c) nothing at all (d) only short walls
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) flipped left to right (c) much bigger (d) upside down only
12. 12.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a ruler (c) a pencil (d) sticky tape
14. 14.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
15. 15.⚖️ 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 keep it the same (b) we measure it (c) we change it
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) the same light (c) how clear the view is (d) the same carton
17. 17.⚖️ 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
18. 18.True or false: dark soil reflects light poorly. (a) False (b) True
19. 19.⚖️ 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 keep it the same (b) we measure it (c) we change it
20. 20.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) a shiny steel plate (d) a mirror
21. 21.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) aluminium foil (d) a rough wooden board
22. 22.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a pilot in a plane (d) a baker
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) vinegar (d) two small mirrors
24. 24.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
25. 25.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) sticky tape (d) a ruler
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 180 degrees (d) 90 degrees
29. 29.True or false: yeast is not needed for the periscope. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) a mirror (d) still clear water
31. 31.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
32. 32.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) a battery cell (d) a pencil
33. 33.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) hear far sounds (d) see in the dark
34. 34.⚖️ 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
35. 35.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) a shiny steel plate (d) aluminium foil
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) a pencil (d) sticky tape
37. 37.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
38. 38.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
39. 39.🧺 Which of these is needed for the periscope? (a) a magnet (b) turmeric powder (c) two small mirrors (d) yeast
40. 40.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) dark soil (d) a mirror

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