Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 446 · 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.True or false: a dull brick reflects light well. (a) True (b) False
2. 2.True or false: a magnet is needed for the periscope. (a) True (b) False
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same carton (c) the same mirrors (d) the object we look at
4. 4.🔭 Which of these reflects light well? (a) a shiny steel plate (b) black cloth (c) dark soil (d) a rough wooden board
5. 5.True or false: a balloon is not needed for the periscope. (a) True (b) False
6. 6.🔭 How many times does light bounce off a mirror in a simple periscope?
7. 7.🔭 Which of these reflects light poorly? (a) black cloth (b) a shiny steel plate (c) a mirror (d) aluminium foil
8. 8.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) magnetism (d) refraction
9. 9.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
10. 10.True or false: a shiny steel plate reflects light well. (a) True (b) False
11. 11.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
12. 12.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
13. 13.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) two pictures (d) a brighter view
14. 14.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a shiny steel plate (d) a mirror
15. 15.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
16. 16.⚖️ 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
17. 17.True or false: a ruler is needed for the periscope. (a) True (b) False
18. 18.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.🔮 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
20. 20.⚖️ 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 change it (c) we keep it the same
21. 21.True or false: sticky tape is not needed for the periscope. (a) True (b) False
22. 22.🧺 Which of these is needed for the periscope? (a) yeast (b) a ruler (c) turmeric powder (d) a magnet
23. 23.⚖️ 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) True (b) False
24. 24.⚖️ 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) the same mirrors (c) how clear the view is
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a balloon (d) sticky tape
26. 26.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) aluminium foil (d) a rough wooden board
27. 27.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) a balloon (d) an empty juice carton
28. 28.🧺 Which of these is needed for the periscope? (a) a pencil (b) yeast (c) a magnet (d) a balloon
29. 29.🧺 Which of these is not needed for the periscope? (a) a magnet (b) an empty juice carton (c) sticky tape (d) a ruler
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
31. 31.🔭 Which of these reflects light poorly? (a) dark soil (b) a mirror (c) aluminium foil (d) a shiny steel plate
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) a pencil (d) an empty juice carton
33. 33.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) two small mirrors (d) yeast
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a pencil (c) an empty juice carton (d) two small mirrors
35. 35.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
36. 36.⚖️ 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 object we look at (c) the same mirrors (d) the same carton
37. 37.⚖️ 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
38. 38.True or false: a balloon is needed for the periscope. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) a pencil (d) sticky tape

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