Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 987 · 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) turmeric powder (b) a ruler (c) a magnet (d) yeast
2. 2.⚖️ 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 object we look at (c) the angle of the mirrors
3. 3.🔭 How many times does light bounce off a mirror in a simple periscope?
4. 4.⚖️ 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
5. 5.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
6. 6.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) black cloth (d) a shiny steel plate
7. 7.⚖️ 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) the same carton (c) the same light (d) how clear the view is
8. 8.🔭 Which of these reflects light poorly? (a) a mirror (b) a rough wooden board (c) a shiny steel plate (d) aluminium foil
9. 9.⚖️ 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
10. 10.🔮 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
11. 11.True or false: two small mirrors is needed for the periscope. (a) False (b) True
12. 12.True or false: black cloth reflects light well. (a) True (b) False
13. 13.True or false: a pencil is not needed for the periscope. (a) False (b) True
14. 14.True or false: dark soil reflects light well. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) a mirror (d) a dull brick
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🔭 How many mirrors does a simple periscope use?
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a ruler (d) yeast
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
21. 21.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
22. 22.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
23. 23.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.True or false: a battery cell is needed for the periscope. (a) True (b) False
25. 25.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) a brighter view (d) only darkness
26. 26.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
27. 27.⚖️ 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
28. 28.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) evaporation (d) magnetism
29. 29.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a mirror (d) a dull brick
30. 30.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) sticky tape (d) a balloon
31. 31.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a dull brick (d) still clear water
32. 32.True or false: still clear water reflects light well. (a) False (b) True
33. 33.🛟 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
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) vinegar (d) an empty juice carton
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) an empty juice carton (c) sticky tape (d) a pencil
37. 37.⚖️ 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 mirrors (c) how clear the view is
38. 38.⚖️ 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
39. 39.⚖️ 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 carton (c) how clear the view is (d) the angle of the mirrors
40. 40.🧺 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) a battery cell

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