Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 58 · 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.True or false: turmeric powder is needed for the periscope. (a) False (b) True
2. 2.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
3. 3.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
4. 4.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 180 degrees (d) 45 degrees
5. 5.True or false: a balloon is needed for the periscope. (a) True (b) False
6. 6.🔭 How many times does light bounce off a mirror in a simple periscope?
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) vinegar
8. 8.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a submarine crew (d) a farmer
9. 9.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) a ruler (d) an empty juice carton
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.⚖️ 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) how clear the view is (c) the angle of the mirrors (d) the same mirrors
13. 13.⚖️ 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 change it (b) we keep it the same (c) we measure it
14. 14.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
17. 17.🧺 Which of these is not needed for the periscope? (a) a balloon (b) two small mirrors (c) sticky tape (d) an empty juice carton
18. 18.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a rough wooden board (d) aluminium foil
19. 19.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
20. 20.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
22. 22.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) taller walls (d) the ground
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) to make it heavy (c) so light reaches the eye (d) so it can float
25. 25.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.True or false: dark soil reflects light well. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) a dull brick (d) still clear water
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is (d) the same light
29. 29.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a rainbow (d) a brighter view
30. 30.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) a ruler (d) vinegar
31. 31.⚖️ 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 mirrors
32. 32.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a mirror (d) black cloth
33. 33.🧺 Which of these is needed for the periscope? (a) a magnet (b) an empty juice carton (c) vinegar (d) turmeric powder
34. 34.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) loose glass panes (d) big wall mirrors
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
36. 36.True or false: a balloon is not needed for the periscope. (a) True (b) False
37. 37.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
38. 38.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) black cloth (d) still clear water
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) a mirror (d) still clear water

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