Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 892 · 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 a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
3. 3.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) black cloth (d) a shiny steel plate
4. 4.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) black cloth (d) aluminium foil
5. 5.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) still clear water (d) a dull brick
6. 6.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) refraction (c) reflection (d) evaporation
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) vinegar (c) sticky tape (d) two small mirrors
8. 8.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the periscope? (a) a pencil (b) yeast (c) a magnet (d) a battery cell
11. 11.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.🔭 How many times does light bounce off a mirror in a simple periscope?
13. 13.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
14. 14.True or false: sticky tape is not needed for the periscope. (a) True (b) False
15. 15.True or false: a balloon is not needed for the periscope. (a) True (b) False
16. 16.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) flipped left to right (c) much bigger (d) upside down only
17. 17.⚖️ 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 carton (c) the angle of the mirrors
18. 18.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a rough wooden board (c) black cloth (d) a dull brick
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) False (b) True
20. 20.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
21. 21.⚖️ 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) how clear the view is (c) the object we look at (d) the angle of the mirrors
22. 22.True or false: vinegar is not needed for the periscope. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) black cloth (d) a shiny steel plate
24. 24.⚖️ 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
25. 25.True or false: sticky tape is needed for the periscope. (a) True (b) False
26. 26.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
27. 27.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) dark soil (d) still clear water
28. 28.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a balloon (c) two small mirrors (d) a ruler
30. 30.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a tree (d) a wall
31. 31.True or false: a balloon is needed for the periscope. (a) False (b) True
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) an empty juice carton (c) a pencil (d) two small mirrors
33. 33.🔭 How many mirrors does a simple periscope use?
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the same light (c) how clear the view is (d) the angle of the mirrors
36. 36.True or false: a shiny steel plate reflects light well. (a) False (b) True
37. 37.🔭 Which of these reflects light well? (a) dark soil (b) still clear water (c) black cloth (d) a dull brick
38. 38.True or false: a mirror reflects light well. (a) False (b) True
39. 39.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) only darkness (d) two pictures
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 change it (b) we keep it the same (c) we measure it

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