Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 132 · 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.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
3. 3.🔭 How many times does light bounce off a mirror in a simple periscope?
4. 4.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a baker (d) a farmer
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) a pencil (d) yeast
6. 6.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
7. 7.⚖️ 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 mirrors (c) how clear the view is (d) the same carton
8. 8.⚖️ 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 light (b) the same carton (c) the angle of the mirrors (d) how clear the view is
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
11. 11.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) black cloth (d) aluminium foil
12. 12.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) taller walls (c) nothing at all (d) the ground
13. 13.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a wall (d) a friend’s toy
14. 14.True or false: two small mirrors is needed for the periscope. (a) False (b) True
15. 15.🔭 Which of these reflects light well? (a) a mirror (b) dark soil (c) a dull brick (d) black cloth
16. 16.🔮 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
17. 17.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) dark soil (d) a dull brick
19. 19.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
20. 20.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 45 degrees (d) 10 degrees
21. 21.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) aluminium foil (d) black cloth
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) a battery cell
23. 23.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a balloon (c) sticky tape (d) an empty juice carton
25. 25.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) a balloon (d) a pencil
26. 26.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a dull brick (d) aluminium foil
27. 27.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) still clear water (d) aluminium foil
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) vinegar (d) sticky tape
29. 29.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
30. 30.⚖️ 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 change it (b) we measure it (c) we keep it the same
31. 31.True or false: a dull brick reflects light poorly. (a) False (b) True
32. 32.⚖️ 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
33. 33.⚖️ 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 measure it (c) we keep it the same
34. 34.🧺 Which of these is needed for the periscope? (a) a ruler (b) vinegar (c) a balloon (d) turmeric powder
35. 35.True or false: a magnet is not needed for the periscope. (a) False (b) True
36. 36.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors
38. 38.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
39. 39.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
40. 40.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) a balloon (d) sticky tape

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