Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 784 · 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 “how clear the view is”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
3. 3.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
4. 4.⚖️ 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
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) an empty juice carton (d) yeast
6. 6.🔭 What does a periscope let you do? (a) see germs (b) see in the dark (c) see over a wall (d) hear far sounds
7. 7.🔭 How many times does light bounce off a mirror in a simple periscope?
8. 8.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
9. 9.⚖️ 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 light (b) the same mirrors (c) the object we look at (d) the angle of the mirrors
10. 10.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) vinegar (d) an empty juice carton
11. 11.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
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 change it (b) we keep it the same (c) we measure it
13. 13.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) reflection (d) magnetism
14. 14.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) a dull brick (d) still clear water
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
16. 16.True or false: a magnet is needed for the periscope. (a) False (b) True
17. 17.True or false: vinegar is needed for the periscope. (a) True (b) False
18. 18.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) aluminium foil (d) a rough wooden board
19. 19.🔭 How many mirrors does a simple periscope use?
20. 20.🔭 Which of these reflects light well? (a) a dull brick (b) a mirror (c) dark soil (d) a rough wooden board
21. 21.True or false: a mirror reflects light well. (a) False (b) True
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) turmeric powder (d) an empty juice carton
23. 23.True or false: black cloth reflects light well. (a) True (b) False
24. 24.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 180 degrees (d) 45 degrees
26. 26.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) a ruler (d) a pencil
27. 27.⚖️ 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
28. 28.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
29. 29.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) a shiny steel plate (d) a mirror
30. 30.🧺 Which of these is needed for the periscope? (a) yeast (b) a battery cell (c) sticky tape (d) vinegar
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.⚖️ 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
33. 33.⚖️ 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 object we look at (c) the angle of the mirrors
34. 34.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) turmeric powder (c) vinegar (d) a battery cell
35. 35.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
36. 36.🔭 Which of these reflects light poorly? (a) a dull brick (b) aluminium foil (c) a mirror (d) still clear water
37. 37.True or false: a shiny steel plate reflects light well. (a) True (b) False
38. 38.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a balloon (c) a ruler (d) two small mirrors
40. 40.⚖️ 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 carton (c) how clear the view is

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