Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 726 · 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 reflects light well? (a) aluminium foil (b) black cloth (c) a dull brick (d) a rough wooden board
2. 2.⚖️ 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
3. 3.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
4. 4.True or false: vinegar is not needed for the periscope. (a) False (b) True
5. 5.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) only short walls (d) the ground
6. 6.True or false: yeast is not needed for the periscope. (a) True (b) False
7. 7.True or false: a ruler is not needed for the periscope. (a) False (b) True
8. 8.True or false: a battery cell is not needed for the periscope. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) dark soil (d) a mirror
10. 10.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a dull brick (d) a mirror
11. 11.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a pilot in a plane (d) a submarine crew
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) an empty juice carton (d) vinegar
14. 14.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
15. 15.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
16. 16.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) an empty juice carton (d) a ruler
19. 19.🔭 How many times does light bounce off a mirror in a simple periscope?
20. 20.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
21. 21.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) aluminium foil (d) dark soil
22. 22.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) see germs (d) hear far sounds
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a magnet (c) a pencil (d) a ruler
24. 24.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
25. 25.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) in colour (d) much bigger
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) a balloon
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) the angle of the mirrors (c) how clear the view is
28. 28.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) still clear water (d) dark soil
29. 29.True or false: a dull brick reflects light poorly. (a) False (b) True
30. 30.True or false: a mirror reflects light well. (a) False (b) True
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) vinegar (c) a pencil (d) a ruler
32. 32.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) turmeric powder (c) a ruler (d) a pencil
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) yeast (d) a pencil
35. 35.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.📘 Light bouncing off a mirror is called ___. (a) reflection (b) magnetism (c) evaporation (d) refraction
37. 37.🔭 Which of these reflects light poorly? (a) still clear water (b) a dull brick (c) a shiny steel plate (d) a mirror
38. 38.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
39. 39.⚖️ 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 light
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True

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