Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 977 · 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 in the dark (b) see germs (c) see over a wall (d) hear far sounds
2. 2.True or false: yeast is not needed for the periscope. (a) False (b) True
3. 3.True or false: a rough wooden board reflects light well. (a) False (b) True
4. 4.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) a balloon (d) an empty juice carton
5. 5.🧺 Which of these is needed for the periscope? (a) vinegar (b) an empty juice carton (c) turmeric powder (d) a battery cell
6. 6.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
7. 7.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) two pictures (d) a rainbow
8. 8.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
9. 9.⚖️ 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) True (b) False
10. 10.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) two small mirrors (d) a balloon
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a mirror (d) aluminium foil
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
16. 16.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) evaporation (d) magnetism
17. 17.⚖️ 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
18. 18.⚖️ 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 measure it (b) we keep it the same (c) we change it
19. 19.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
21. 21.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.🔭 How many times does light bounce off a mirror in a simple periscope?
23. 23.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
24. 24.🔭 How many mirrors does a simple periscope use?
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a battery cell (d) a pencil
26. 26.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a shiny steel plate (d) dark soil
27. 27.⚖️ 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 change it (c) we keep it the same
28. 28.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) dark soil (d) still clear water
29. 29.True or false: turmeric powder is needed for the periscope. (a) True (b) False
30. 30.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
31. 31.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) black cloth
32. 32.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) much bigger (d) upside down only
33. 33.⚖️ 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
34. 34.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
35. 35.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) a mirror (d) still clear water
36. 36.⚖️ 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
37. 37.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
38. 38.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a pilot in a plane (c) a submarine crew (d) a baker
39. 39.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) dark soil (d) a dull brick
40. 40.True or false: a magnet is not needed for the periscope. (a) True (b) False

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