Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 412 · 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 shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.True or false: a magnet is not needed for the periscope. (a) True (b) False
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) two small mirrors (d) a balloon
4. 4.⚖️ 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 object we look at
5. 5.⚖️ 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
6. 6.True or false: aluminium foil reflects light well. (a) False (b) True
7. 7.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
8. 8.🔭 How many mirrors does a simple periscope use?
9. 9.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a rough wooden board (d) dark soil
10. 10.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) big wall mirrors (d) broken glass bits
11. 11.⚖️ 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) how clear the view is (d) the angle of the mirrors
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) a pencil (d) an empty juice carton
13. 13.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) a wall (d) the Sun
15. 15.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) turmeric powder (c) a ruler (d) an empty juice carton
16. 16.🧺 Which of these is needed for the periscope? (a) a ruler (b) a battery cell (c) yeast (d) vinegar
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) aluminium foil (d) a dull brick
19. 19.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) a rough wooden board (d) aluminium foil
20. 20.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) a brighter view (d) two pictures
21. 21.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
23. 23.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
24. 24.⚖️ 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
25. 25.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) taller walls (d) nothing at all
26. 26.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a dull brick (d) dark soil
28. 28.True or false: a battery cell is not needed for the periscope. (a) False (b) True
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
30. 30.⚖️ 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 light
31. 31.⚖️ 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 mirrors
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the object we look at (c) how clear the view is (d) the same carton
33. 33.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
34. 34.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.True or false: dark soil reflects light poorly. (a) True (b) False
36. 36.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) a balloon (d) an empty juice carton
37. 37.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) hear far sounds (d) see germs
38. 38.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.🧺 Which of these is needed for the periscope? (a) a pencil (b) a battery cell (c) turmeric powder (d) a magnet

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