Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 970 · 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.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a magnet (d) two small mirrors
2. 2.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) a pencil (c) a ruler (d) two small mirrors
3. 3.🔮 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
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
6. 6.True or false: aluminium foil reflects light poorly. (a) True (b) False
7. 7.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a battery cell (c) a balloon (d) vinegar
9. 9.⚖️ 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 angle of the mirrors (c) the same carton
10. 10.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
11. 11.🔭 How many times does light bounce off a mirror in a simple periscope?
12. 12.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 10 degrees (d) 45 degrees
13. 13.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a rough wooden board (d) a shiny steel plate
14. 14.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) a wall (d) the Sun
15. 15.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
16. 16.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) turmeric powder (d) two small mirrors
17. 17.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) still clear water (d) dark soil
18. 18.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
20. 20.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) a dull brick (d) black cloth
21. 21.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
22. 22.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a farmer (d) a submarine crew
24. 24.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.True or false: two small mirrors is needed for the periscope. (a) True (b) False
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) turmeric powder (d) an empty juice carton
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a pencil (c) two small mirrors (d) sticky tape
28. 28.🛟 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
29. 29.⚖️ 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) the same mirrors (d) how clear the view is
30. 30.🧺 Which of these is not needed for the periscope? (a) a balloon (b) an empty juice carton (c) two small mirrors (d) a pencil
31. 31.🔭 How many mirrors does a simple periscope use?
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) an empty juice carton (c) sticky tape (d) a ruler
33. 33.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
34. 34.⚖️ 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 change it (c) we measure it
35. 35.True or false: a rough wooden board reflects light well. (a) False (b) True
36. 36.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) a battery cell (d) a pencil
37. 37.True or false: a balloon is needed for the periscope. (a) True (b) False
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.True or false: a dull brick reflects light well. (a) False (b) True
40. 40.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed

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