Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 944 · 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.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) hear far sounds (d) see in the dark
2. 2.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
3. 3.🧺 Which of these is needed for the periscope? (a) a pencil (b) a balloon (c) a magnet (d) yeast
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a ruler (d) a battery cell
5. 5.🔭 How many times does light bounce off a mirror in a simple periscope?
6. 6.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
7. 7.True or false: a dull brick reflects light well. (a) False (b) True
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a ruler (d) two small mirrors
10. 10.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) an empty juice carton (d) a balloon
11. 11.🧺 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
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) a wall (d) the Sun
14. 14.True or false: dark soil reflects light poorly. (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 angle of the mirrors (c) how clear the view is (d) the same mirrors
16. 16.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a dull brick (d) black cloth
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same light (c) the same mirrors (d) the same carton
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) sticky tape (d) a pencil
19. 19.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) refraction (d) reflection
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a pencil (c) a ruler (d) sticky tape
22. 22.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) upside down only (c) much bigger (d) in colour
23. 23.⚖️ 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
24. 24.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
26. 26.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) black cloth
27. 27.True or false: a ruler is needed for the periscope. (a) True (b) False
28. 28.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) aluminium foil (c) still clear water (d) a mirror
29. 29.🧺 Which of these is not needed for the periscope? (a) a ruler (b) turmeric powder (c) a pencil (d) sticky tape
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.True or false: a mirror reflects light well. (a) True (b) False
32. 32.True or false: vinegar is needed for the periscope. (a) True (b) False
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a pencil (d) an empty juice carton
35. 35.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) vinegar (d) a ruler
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) black cloth
38. 38.🧺 Which of these is not needed for the periscope? (a) a magnet (b) an empty juice carton (c) a ruler (d) sticky tape
39. 39.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) still clear water (d) aluminium foil
40. 40.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed

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