Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 342 · 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) sticky tape (b) a pencil (c) an empty juice carton (d) a magnet
2. 2.🔮 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
3. 3.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
4. 4.🔭 How many mirrors does a simple periscope use?
5. 5.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
6. 6.True or false: a balloon is not needed for the periscope. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a mirror (d) a rough wooden board
8. 8.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a magnet (d) a ruler
10. 10.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) still clear water (d) black cloth
11. 11.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same carton (c) the same light (d) the same mirrors
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) yeast (c) a ruler (d) a pencil
14. 14.True or false: a mirror reflects light poorly. (a) False (b) True
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
16. 16.True or false: vinegar is needed for the periscope. (a) True (b) False
17. 17.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) a shiny steel plate (d) dark soil
18. 18.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) black cloth
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.🔭 How many times does light bounce off a mirror in a simple periscope?
21. 21.True or false: sticky tape is needed for the periscope. (a) True (b) False
22. 22.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) a ruler (d) a balloon
23. 23.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
24. 24.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
26. 26.🛟 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
27. 27.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) aluminium foil (d) a dull brick
29. 29.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
31. 31.⚖️ 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 measure it (c) we keep it the same
32. 32.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a pilot in a plane (d) a baker
33. 33.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a friend’s toy (d) a tree
34. 34.⚖️ 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 light (d) the same carton
35. 35.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) only short walls (d) nothing at all
36. 36.True or false: sticky tape is not needed for the periscope. (a) True (b) False
37. 37.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a mirror (d) black cloth
38. 38.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) an empty juice carton (d) a battery cell
40. 40.True or false: a rough wooden board reflects light poorly. (a) True (b) False

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