Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 915 · 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 dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same light (c) the angle of the mirrors (d) how clear the view is
4. 4.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
5. 5.True or false: a pencil is not needed for the periscope. (a) True (b) False
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
7. 7.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) magnetism (d) reflection
8. 8.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
9. 9.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) taller walls (c) nothing at all (d) the ground
10. 10.True or false: black cloth reflects light poorly. (a) True (b) False
11. 11.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
12. 12.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
13. 13.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
14. 14.⚖️ 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 measure it (c) we keep it the same
15. 15.🔭 How many mirrors does a simple periscope use?
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) two small mirrors (d) sticky tape
18. 18.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
19. 19.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a dull brick (d) a rough wooden board
20. 20.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) a dull brick (d) a rough wooden board
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
22. 22.True or false: dark soil 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 same carton is what we measure. (a) True (b) False
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) a brighter view (d) two pictures
26. 26.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) still clear water (d) a dull brick
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
28. 28.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
29. 29.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a rough wooden board (d) still clear water
31. 31.⚖️ 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
32. 32.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
33. 33.🧺 Which of these is needed for the periscope? (a) a pencil (b) turmeric powder (c) a magnet (d) yeast
34. 34.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) an empty juice carton (d) a magnet
35. 35.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
39. 39.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) flipped left to right (d) much bigger
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) yeast (d) sticky tape

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