Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 947 · 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.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
2. 2.⚖️ 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) the same light (c) how clear the view is
3. 3.True or false: a battery cell is not needed for the periscope. (a) True (b) False
4. 4.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) a ruler (d) turmeric powder
6. 6.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) aluminium foil (d) a rough wooden board
7. 7.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) a mirror
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
9. 9.🛟 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
10. 10.🔭 How many mirrors does a simple periscope use?
11. 11.True or false: dark soil reflects light well. (a) False (b) True
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) two small mirrors (c) a pencil (d) a ruler
13. 13.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
14. 14.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a pencil (d) a balloon
15. 15.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a rough wooden board (d) a dull brick
16. 16.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) a rough wooden board (d) dark soil
17. 17.⚖️ 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
18. 18.True or false: a dull brick reflects light well. (a) True (b) False
19. 19.⚖️ 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
20. 20.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the periscope? (a) a balloon (b) two small mirrors (c) a magnet (d) vinegar
22. 22.⚖️ 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 keep it the same (c) we measure it
23. 23.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.⚖️ 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 object we look at (c) the same carton (d) the angle of the mirrors
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
27. 27.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) the Sun (d) a wall
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) vinegar (c) a pencil (d) sticky tape
29. 29.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.True or false: black cloth reflects light well. (a) True (b) False
31. 31.⚖️ 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) False (b) True
32. 32.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) aluminium foil (d) a dull brick
33. 33.📘 Light bouncing off a mirror is called ___. (a) reflection (b) evaporation (c) refraction (d) magnetism
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) a pencil (d) a ruler
35. 35.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) still clear water (d) a rough wooden board
36. 36.🔭 How many times does light bounce off a mirror in a simple periscope?
37. 37.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
38. 38.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
39. 39.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a farmer (d) a pilot in a plane
40. 40.⚖️ 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

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