Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 293 · 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.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) an empty juice carton (c) a ruler (d) two small mirrors
4. 4.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) a pencil (d) yeast
5. 5.🔮 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
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) a battery cell (d) two small mirrors
7. 7.🔭 How many times does light bounce off a mirror in a simple periscope?
8. 8.⚖️ 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 mirrors (c) the same carton (d) the object we look at
9. 9.⚖️ 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
10. 10.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) yeast (c) a ruler (d) two small mirrors
12. 12.⚖️ 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 measure it (b) we keep it the same (c) we change it
13. 13.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) still clear water (d) a shiny steel plate
14. 14.🔭 How many mirrors does a simple periscope use?
15. 15.True or false: a pencil 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 balloon (b) a pencil (c) sticky tape (d) two small mirrors
17. 17.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) yeast (d) a ruler
18. 18.True or false: vinegar is not needed for the periscope. (a) False (b) True
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) turmeric powder (d) a pencil
21. 21.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
22. 22.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
23. 23.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) a wall (d) the Sun
24. 24.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a pencil (c) sticky tape (d) an empty juice carton
25. 25.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
26. 26.True or false: dark soil reflects light well. (a) False (b) True
27. 27.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a ruler (c) yeast (d) vinegar
28. 28.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
29. 29.⚖️ 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 measure it (c) we change it
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a pencil (d) a magnet
31. 31.⚖️ 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) True (b) False
32. 32.True or false: dark soil reflects light poorly. (a) False (b) True
33. 33.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) an empty juice carton (c) vinegar (d) a battery cell
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
35. 35.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) see germs (d) hear far sounds
36. 36.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.⚖️ 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
38. 38.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a shiny steel plate (d) a rough wooden board
39. 39.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a rough wooden board (d) a mirror
40. 40.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) evaporation (d) refraction

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