Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 448 · 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.True or false: a shiny steel plate reflects light well. (a) False (b) True
2. 2.🔭 How many mirrors does a simple periscope use?
3. 3.🧺 Which of these is needed for the periscope? (a) vinegar (b) a pencil (c) a magnet (d) yeast
4. 4.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) a balloon (d) sticky tape
6. 6.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.⚖️ 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
8. 8.⚖️ 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
9. 9.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) dark soil (d) a mirror
10. 10.🔭 Which of these reflects light poorly? (a) black cloth (b) aluminium foil (c) still clear water (d) a shiny steel plate
11. 11.🔭 How many times does light bounce off a mirror in a simple periscope?
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) two small mirrors (d) turmeric powder
13. 13.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.True or false: vinegar is not needed for the periscope. (a) False (b) True
15. 15.⚖️ 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 same light (c) the angle of the mirrors (d) the same mirrors
16. 16.True or false: a ruler is not needed for the periscope. (a) False (b) True
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a ruler (d) a battery cell
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) two small mirrors (d) vinegar
20. 20.True or false: vinegar is needed for the periscope. (a) True (b) False
21. 21.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.⚖️ 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 measure it (c) we change it
23. 23.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) a battery cell (d) a balloon
24. 24.🔭 Which of these reflects light well? (a) a rough wooden board (b) still clear water (c) black cloth (d) a dull brick
25. 25.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
26. 26.True or false: two small mirrors is needed for the periscope. (a) False (b) True
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the angle of the mirrors (c) how clear the view is (d) the same mirrors
28. 28.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) dark soil (d) a mirror
29. 29.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a tree (c) a wall (d) a friend’s toy
30. 30.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
32. 32.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) see over a wall (d) hear far sounds
33. 33.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
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: dark soil reflects light poorly. (a) False (b) True
37. 37.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
39. 39.🧺 Which of these is needed for the periscope? (a) a magnet (b) sticky tape (c) a balloon (d) vinegar
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False

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