Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 198 · 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: vinegar is not needed for the periscope. (a) False (b) True
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) a pencil (d) a ruler
3. 3.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
4. 4.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
5. 5.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) sticky tape (d) yeast
6. 6.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) black cloth (d) a shiny steel plate
7. 7.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a balloon (c) a pencil (d) a ruler
8. 8.True or false: aluminium foil reflects light poorly. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) aluminium foil (d) a mirror
10. 10.⚖️ 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
11. 11.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
12. 12.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) a brighter view (d) two pictures
14. 14.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) upside down only (c) flipped left to right (d) in colour
15. 15.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
16. 16.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a friend’s toy (d) a tree
17. 17.⚖️ 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 object we look at (c) how clear the view is (d) the angle of the mirrors
18. 18.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) an empty juice carton (c) a ruler (d) two small mirrors
19. 19.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
20. 20.⚖️ 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) how clear the view is (c) the same light
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same mirrors (c) the same light (d) the angle of the mirrors
22. 22.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
23. 23.⚖️ 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
24. 24.True or false: sticky tape is not needed for the periscope. (a) False (b) True
25. 25.⚖️ 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 keep it the same (b) we measure it (c) we change it
26. 26.🔭 Which of these reflects light poorly? (a) dark soil (b) a mirror (c) aluminium foil (d) still clear water
27. 27.⚖️ 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
28. 28.📘 Light bouncing off a mirror is called ___. (a) reflection (b) refraction (c) evaporation (d) magnetism
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
30. 30.True or false: dark soil reflects light poorly. (a) True (b) False
31. 31.⚖️ 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
32. 32.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
34. 34.⚖️ 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 change it (c) we measure it
35. 35.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) a rough wooden board (d) aluminium foil
36. 36.🧺 Which of these is not needed for the periscope? (a) yeast (b) a pencil (c) a ruler (d) two small mirrors
37. 37.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
38. 38.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
39. 39.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) turmeric powder (c) sticky tape (d) a ruler
40. 40.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) the ground (d) taller walls

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