Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 663 · 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 needed for the periscope? (a) a balloon (b) yeast (c) a magnet (d) a pencil
2. 2.🔭 Which of these reflects light poorly? (a) dark soil (b) aluminium foil (c) a mirror (d) a shiny steel plate
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 measure it (b) we change it (c) we keep it the same
4. 4.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) turmeric powder (c) sticky tape (d) a pencil
6. 6.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) black cloth (d) aluminium foil
7. 7.⚖️ 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
8. 8.⚖️ 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 same light (c) the angle of the mirrors
9. 9.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
10. 10.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 180 degrees (d) 45 degrees
11. 11.True or false: sticky tape is not needed for the periscope. (a) False (b) True
12. 12.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) see germs (d) hear far sounds
13. 13.⚖️ 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 measure it (b) we change it (c) we keep it the same
14. 14.True or false: a dull brick reflects light well. (a) False (b) True
15. 15.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) a mirror (d) black cloth
16. 16.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a submarine crew (d) a farmer
17. 17.⚖️ 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 mirrors (c) the angle of the mirrors (d) how clear the view is
18. 18.⚖️ 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) True (b) False
19. 19.🔭 How many times does light bounce off a mirror in a simple periscope?
20. 20.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
21. 21.🔭 How many mirrors does a simple periscope use?
22. 22.True or false: a magnet is needed for the periscope. (a) True (b) False
23. 23.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
24. 24.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a pencil (d) a battery cell
26. 26.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) still clear water (d) a dull brick
28. 28.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) dark soil (d) a rough wooden board
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the periscope? (a) yeast (b) two small mirrors (c) turmeric powder (d) a magnet
31. 31.🛟 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
32. 32.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) dark soil (d) black cloth
33. 33.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) two small mirrors (d) a balloon
36. 36.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a ruler (c) an empty juice carton (d) sticky tape
37. 37.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) still clear water (d) a dull brick
38. 38.⚖️ 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 keep it the same (b) we measure it (c) we change it
39. 39.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
40. 40.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed

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