Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 958 · 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.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) sticky tape (d) a magnet
2. 2.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a rough wooden board (d) a mirror
3. 3.⚖️ 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
4. 4.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) sticky tape (d) yeast
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) a ruler (d) an empty juice carton
6. 6.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
7. 7.🔭 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
8. 8.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
9. 9.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) a shiny steel plate (d) black cloth
10. 10.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a mirror (d) dark soil
11. 11.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
12. 12.🔭 How many times does light bounce off a mirror in a simple periscope?
13. 13.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
14. 14.True or false: yeast is not needed for the periscope. (a) False (b) True
15. 15.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) the ground (d) only short walls
16. 16.⚖️ 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 angle of the mirrors (c) the same mirrors
17. 17.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
18. 18.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
19. 19.True or false: dark soil reflects light poorly. (a) True (b) False
20. 20.🔭 Which of these reflects light well? (a) still clear water (b) dark soil (c) a rough wooden board (d) a dull brick
21. 21.True or false: a mirror reflects light well. (a) True (b) False
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
23. 23.True or false: a rough wooden board reflects light poorly. (a) False (b) True
24. 24.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.True or false: turmeric powder is needed for the periscope. (a) True (b) False
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
27. 27.⚖️ 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 change it (b) we keep it the same (c) we measure it
28. 28.⚖️ 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
29. 29.⚖️ 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 keep it the same (c) we measure it
30. 30.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a mirror (c) aluminium foil (d) a shiny steel plate
31. 31.⚖️ 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 change it (c) we measure it
32. 32.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) upside down only (c) much bigger (d) in colour
33. 33.True or false: a magnet is needed for the periscope. (a) True (b) False
34. 34.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a wall (c) a tree (d) a friend’s toy
35. 35.⚖️ 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) True (b) False
36. 36.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) dark soil (d) black cloth
37. 37.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a rough wooden board (d) a shiny steel plate
38. 38.True or false: a pencil is needed for the periscope. (a) True (b) False
39. 39.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) reflection (d) refraction
40. 40.True or false: a ruler is needed for the periscope. (a) False (b) True

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