Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 165 · 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 mirrors does a simple periscope use?
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a pencil (d) yeast
3. 3.True or false: a ruler is not needed for the periscope. (a) False (b) True
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a baker (d) a pilot in a plane
6. 6.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a tree (d) a friend’s toy
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
8. 8.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) reflection (d) refraction
9. 9.⚖️ 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
10. 10.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
11. 11.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
12. 12.True or false: a mirror reflects light well. (a) True (b) False
13. 13.⚖️ 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
14. 14.True or false: yeast is needed for the periscope. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) a dull brick (b) aluminium foil (c) a mirror (d) still clear water
16. 16.🧺 Which of these is needed for the periscope? (a) vinegar (b) a magnet (c) sticky tape (d) yeast
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same mirrors (c) the angle of the mirrors (d) the object we look at
18. 18.🔍 Which is the odd one out? (a) still clear water (b) dark soil (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 carton is what we measure. (a) True (b) False
20. 20.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) dark soil (d) a rough wooden board
22. 22.True or false: a rough wooden board reflects light well. (a) True (b) False
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the periscope? (a) a magnet (b) an empty juice carton (c) yeast (d) a balloon
25. 25.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
26. 26.🧺 Which of these is needed for the periscope? (a) vinegar (b) two small mirrors (c) turmeric powder (d) a balloon
27. 27.⚖️ 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 light (c) the object we look at (d) how clear the view is
28. 28.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) a rough wooden board (d) dark soil
29. 29.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
31. 31.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a balloon (c) two small mirrors (d) a ruler
32. 32.⚖️ 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) True (b) False
33. 33.True or false: a shiny steel plate reflects light well. (a) True (b) False
34. 34.⚖️ 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
35. 35.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) a rough wooden board (d) aluminium foil
37. 37.True or false: aluminium foil reflects light well. (a) False (b) True
38. 38.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
39. 39.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) black cloth (d) a mirror
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) an empty juice carton (d) a pencil

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