Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 916 · 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 black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a magnet (d) a ruler
3. 3.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) reflection (d) magnetism
4. 4.🧺 Which of these is needed for the periscope? (a) a battery cell (b) an empty juice carton (c) a balloon (d) a magnet
5. 5.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) in colour (d) upside down only
6. 6.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
7. 7.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
8. 8.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 45 degrees (d) 10 degrees
9. 9.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) a shiny steel plate (d) still clear water
10. 10.True or false: a balloon is not needed for the periscope. (a) True (b) False
11. 11.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) dark soil (d) a shiny steel plate
12. 12.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
13. 13.⚖️ 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
14. 14.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.🔭 Which of these reflects light well? (a) black cloth (b) still clear water (c) a rough wooden board (d) a dull brick
16. 16.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) plastic safety mirrors (d) big wall mirrors
17. 17.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
18. 18.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) black cloth (d) dark soil
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) a ruler (d) a pencil
20. 20.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) the ground (d) taller walls
21. 21.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.🔭 How many mirrors does a simple periscope use?
23. 23.True or false: a shiny steel plate reflects light well. (a) False (b) True
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the same light (c) the angle of the mirrors
25. 25.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) black cloth
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same carton (c) how clear the view is (d) the same mirrors
27. 27.⚖️ 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 same light (c) the same carton (d) the angle of the mirrors
28. 28.⚖️ 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 keep it the same (b) we measure it (c) we change it
29. 29.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
30. 30.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🔭 How many times does light bounce off a mirror in a simple periscope?
33. 33.True or false: a mirror reflects light poorly. (a) True (b) False
34. 34.⚖️ 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
35. 35.True or false: dark soil reflects light well. (a) True (b) False
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) two small mirrors (d) a battery cell
37. 37.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
38. 38.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
40. 40.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) a ruler (d) vinegar

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