Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 40 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) an empty juice carton (d) a pencil
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) how clear the view is (c) the same carton (d) the same light
4. 4.🧺 Which of these is needed for the periscope? (a) a ruler (b) a balloon (c) vinegar (d) a battery cell
5. 5.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
7. 7.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.🧺 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) yeast
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a ruler (d) vinegar
11. 11.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
12. 12.True or false: turmeric powder is needed for the periscope. (a) True (b) False
13. 13.🔭 How many mirrors does a simple periscope use?
14. 14.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.True or false: two small mirrors is needed for the periscope. (a) False (b) True
16. 16.🧺 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 magnet
17. 17.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) refraction (c) reflection (d) evaporation
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) a balloon
20. 20.⚖️ 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 measure it (b) we keep it the same (c) we change it
21. 21.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
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.⚖️ 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 mirrors (c) the same light (d) the same carton
24. 24.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) two pictures (d) only darkness
25. 25.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) taller walls (d) only short walls
26. 26.True or false: still clear water reflects light well. (a) True (b) False
27. 27.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a shiny steel plate (c) still clear water (d) a mirror
28. 28.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a magnet (c) turmeric powder (d) vinegar
29. 29.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) a rough wooden board (d) black cloth
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is
31. 31.True or false: vinegar is needed for the periscope. (a) True (b) False
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) aluminium foil (d) a dull brick
34. 34.True or false: a battery cell is needed for the periscope. (a) True (b) False
35. 35.⚖️ 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) the same carton (c) how clear the view is
36. 36.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) dark soil (d) black cloth
37. 37.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
38. 38.True or false: sticky tape is needed for the periscope. (a) False (b) True
39. 39.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a mirror (d) a dull brick
40. 40.True or false: an empty juice carton is needed for the periscope. (a) False (b) True

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