Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 779 · 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.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
2. 2.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
3. 3.⚖️ 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 change it (c) we measure it
4. 4.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) True (b) False
6. 6.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.🔭 Which of these reflects light poorly? (a) aluminium foil (b) black cloth (c) a mirror (d) still clear water
8. 8.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 180 degrees (d) 90 degrees
9. 9.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🔭 Which of these reflects light well? (a) a rough wooden board (b) a shiny steel plate (c) black cloth (d) a dull brick
14. 14.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a dull brick (d) aluminium foil
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
16. 16.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) an empty juice carton (d) a pencil
18. 18.True or false: still clear water reflects light well. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) black cloth (d) a dull brick
20. 20.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) hear far sounds (d) see in the dark
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
22. 22.🧺 Which of these is not needed for the periscope? (a) a magnet (b) an empty juice carton (c) sticky tape (d) a ruler
23. 23.🔮 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
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the object we look at (c) the same carton (d) how clear the view is
25. 25.True or false: a dull brick reflects light poorly. (a) False (b) True
26. 26.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
27. 27.🧺 Which of these is needed for the periscope? (a) yeast (b) a balloon (c) an empty juice carton (d) turmeric powder
28. 28.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
29. 29.⚖️ 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 change it (c) we keep it the same
30. 30.True or false: sticky tape is needed for the periscope. (a) True (b) False
31. 31.🔭 How many mirrors does a simple periscope use?
32. 32.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
33. 33.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a pencil (c) vinegar (d) a magnet
34. 34.True or false: a shiny steel plate reflects light well. (a) False (b) True
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) sticky tape (d) an empty juice carton
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same light (c) the object we look at (d) how clear the view is
37. 37.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
38. 38.⚖️ 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
39. 39.🔭 How many times does light bounce off a mirror in a simple periscope?
40. 40.True or false: dark soil reflects light poorly. (a) True (b) False

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