Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 640 · 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.⚖️ 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
2. 2.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) a dull brick (d) aluminium foil
3. 3.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
4. 4.⚖️ 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) False (b) True
5. 5.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) two pictures (d) a brighter view
7. 7.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.⚖️ 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) False (b) True
9. 9.True or false: aluminium foil reflects light poorly. (a) False (b) True
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) vinegar (d) two small mirrors
12. 12.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
13. 13.True or false: dark soil reflects light well. (a) False (b) True
14. 14.🔭 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
15. 15.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
16. 16.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) two small mirrors (d) a magnet
17. 17.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) a balloon (d) sticky tape
18. 18.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) a rough wooden board (d) still clear water
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) a magnet (d) an empty juice carton
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
21. 21.True or false: a magnet is needed for the periscope. (a) False (b) True
22. 22.⚖️ 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) 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.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a rough wooden board (d) a mirror
25. 25.⚖️ 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 same carton
26. 26.True or false: dark soil reflects light poorly. (a) False (b) True
27. 27.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) a balloon (d) sticky tape
28. 28.⚖️ 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
29. 29.True or false: sticky tape is not needed for the periscope. (a) False (b) True
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) an empty juice carton (c) a ruler (d) sticky tape
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) an empty juice carton (d) a pencil
32. 32.⚖️ 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
33. 33.⚖️ 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
34. 34.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) still clear water (d) a dull brick
35. 35.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) black cloth (d) a mirror
36. 36.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
37. 37.True or false: a mirror reflects light poorly. (a) True (b) False
38. 38.True or false: sticky tape is needed for the periscope. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a mirror (d) a dull brick
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True

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