Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 265 · 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.🔭 How many times does light bounce off a mirror in a simple periscope?
2. 2.⚖️ 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 same mirrors (c) the same light (d) the angle of the mirrors
3. 3.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) sticky tape (d) yeast
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.True or false: a mirror reflects light well. (a) True (b) False
6. 6.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) magnetism (d) evaporation
7. 7.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) yeast (d) a ruler
9. 9.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) taller walls (d) nothing at all
11. 11.⚖️ 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
12. 12.⚖️ 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) how clear the view is (d) the same light
13. 13.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a shiny steel plate (d) a mirror
14. 14.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) aluminium foil (d) a shiny steel plate
15. 15.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) a balloon
17. 17.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) black cloth (d) a rough wooden board
18. 18.⚖️ 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
19. 19.True or false: two small mirrors is not needed for the periscope. (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 kept the same. (a) False (b) True
21. 21.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
22. 22.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) dark soil (d) black cloth
23. 23.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a rough wooden board (d) still clear water
24. 24.🔭 How many mirrors does a simple periscope use?
25. 25.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
26. 26.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
27. 27.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
28. 28.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) a pencil (d) turmeric powder
29. 29.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.⚖️ 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
31. 31.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) the Sun (d) a friend’s toy
32. 32.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
33. 33.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) a pencil (d) a magnet
36. 36.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) vinegar (d) sticky tape
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) turmeric powder (d) two small mirrors
38. 38.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
39. 39.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
40. 40.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well

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