Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 492 · 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 needed for the periscope? (a) a magnet (b) a balloon (c) turmeric powder (d) two small mirrors
2. 2.True or false: a pencil is not needed for the periscope. (a) True (b) False
3. 3.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) two small mirrors (d) a ruler
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a ruler (c) a pencil (d) sticky tape
6. 6.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) the ground (d) taller walls
7. 7.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
8. 8.True or false: dark soil reflects light poorly. (a) True (b) False
9. 9.True or false: a mirror reflects light well. (a) False (b) True
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same carton (b) the same mirrors (c) the object we look at (d) the angle of the mirrors
11. 11.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so light reaches the eye (d) so it can float
12. 12.🔭 How many times does light bounce off a mirror in a simple periscope?
13. 13.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) a pencil (d) a battery cell
14. 14.⚖️ 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 change it (c) we keep it the same
15. 15.True or false: still clear water reflects light well. (a) False (b) True
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a battery cell (c) an empty juice carton (d) a ruler
18. 18.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
19. 19.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.⚖️ 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
21. 21.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) aluminium foil (d) a shiny steel plate
23. 23.🔮 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
24. 24.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) black cloth
25. 25.🔭 How many mirrors does a simple periscope use?
26. 26.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a rough wooden board (d) a mirror
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the angle of the mirrors (c) the same mirrors (d) the same carton
28. 28.True or false: yeast is not needed for the periscope. (a) False (b) True
29. 29.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
30. 30.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a shiny steel plate (d) a rough wooden board
31. 31.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.True or false: aluminium foil reflects light well. (a) False (b) True
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) a ruler (d) a pencil
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) turmeric powder (c) a ruler (d) an empty juice carton
35. 35.True or false: a shiny steel plate reflects light well. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) a shiny steel plate (d) black cloth
37. 37.True or false: aluminium foil reflects light poorly. (a) False (b) True
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the same carton
39. 39.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) two small mirrors (c) a pencil (d) sticky tape
40. 40.⚖️ 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 measure it (b) we keep it the same (c) we change it

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