Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 426 · 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 still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
3. 3.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) a wall (d) the Sun
4. 4.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a mirror (d) a dull brick
5. 5.True or false: two small mirrors is needed for the periscope. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) dark soil (d) still clear water
7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
8. 8.⚖️ 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
9. 9.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
10. 10.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a ruler (d) an empty juice carton
12. 12.⚖️ 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 mirrors (b) the angle of the mirrors (c) the same carton (d) the object we look at
13. 13.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a shiny steel plate (d) a rough wooden board
14. 14.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) a balloon (d) two small mirrors
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
17. 17.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.True or false: yeast is not needed for the periscope. (a) True (b) False
19. 19.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) turmeric powder (d) an empty juice carton
20. 20.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) black cloth (d) a shiny steel plate
21. 21.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection
22. 22.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.⚖️ 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
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
25. 25.🧺 Which of these is not needed for the periscope? (a) a pencil (b) vinegar (c) an empty juice carton (d) a ruler
26. 26.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a rough wooden board
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) an empty juice carton (d) a ruler
28. 28.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
29. 29.🔭 How many times does light bounce off a mirror in a simple periscope?
30. 30.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) two small mirrors (d) turmeric powder
31. 31.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a rainbow (d) a brighter view
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) a ruler (d) two small mirrors
34. 34.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) dark soil (d) a rough wooden board
35. 35.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) a dull brick
37. 37.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
38. 38.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) aluminium foil (d) black cloth
40. 40.True or false: a dull brick reflects light poorly. (a) False (b) True

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