Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 743 · 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? True or false: the same mirrors is what we measure. (a) False (b) True
2. 2.True or false: black cloth reflects light poorly. (a) False (b) True
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a pencil (d) yeast
4. 4.True or false: sticky tape is not needed for the periscope. (a) False (b) True
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) an empty juice carton (d) sticky tape
6. 6.⚖️ 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 keep it the same (b) we change it (c) we measure it
7. 7.True or false: yeast is not needed for the periscope. (a) False (b) True
8. 8.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
9. 9.True or false: aluminium foil reflects light well. (a) False (b) True
10. 10.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) black cloth (d) aluminium foil
11. 11.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) vinegar (c) yeast (d) a battery cell
12. 12.🔮 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
13. 13.True or false: two small mirrors is needed for the periscope. (a) True (b) False
14. 14.True or false: vinegar is not needed for the periscope. (a) True (b) False
15. 15.⚖️ 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 measure it (b) we keep it the same (c) we change it
16. 16.🔭 How many mirrors does a simple periscope use?
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two small mirrors (d) a pencil
18. 18.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) only darkness (d) a rainbow
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
21. 21.🔭 How many times does light bounce off a mirror in a simple periscope?
22. 22.⚖️ 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 carton (c) the same light (d) how clear the view is
23. 23.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
25. 25.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) a magnet (d) sticky tape
26. 26.True or false: a dull brick reflects light well. (a) True (b) False
27. 27.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) yeast (d) a ruler
28. 28.⚖️ 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 keep it the same (c) we measure it
29. 29.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
30. 30.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a battery cell (d) an empty juice carton
32. 32.True or false: still clear water reflects light well. (a) False (b) True
33. 33.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
34. 34.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
35. 35.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) dark soil (d) aluminium foil
37. 37.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) dark soil
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a balloon (c) a pencil (d) an empty juice carton
39. 39.True or false: a rough wooden board reflects light poorly. (a) False (b) True
40. 40.🔭 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

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