Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 305 · 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.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
2. 2.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a magnet (d) an empty juice carton
4. 4.True or false: a dull brick reflects light well. (a) False (b) True
5. 5.🔭 Which of these reflects light well? (a) a shiny steel plate (b) black cloth (c) dark soil (d) a rough wooden board
6. 6.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) black cloth
7. 7.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the angle of the mirrors (c) the same light (d) the same carton
9. 9.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
10. 10.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) the ground (d) nothing at all
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a balloon (d) sticky tape
12. 12.True or false: a rough wooden board reflects light well. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) a rough wooden board (d) a dull brick
14. 14.⚖️ 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) True (b) False
15. 15.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
16. 16.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) a dull brick (d) still clear water
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a pencil (d) two small mirrors
18. 18.⚖️ 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
19. 19.⚖️ 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 mirrors
20. 20.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) broken glass bits (c) loose glass panes (d) big wall mirrors
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a ruler (d) yeast
22. 22.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
24. 24.⚖️ 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
25. 25.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a battery cell (c) a pencil (d) sticky tape
26. 26.⚖️ 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 same light (c) the angle of the mirrors
27. 27.True or false: two small mirrors is needed for the periscope. (a) True (b) False
28. 28.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a balloon (c) a ruler (d) an empty juice carton
29. 29.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
30. 30.🔭 How many mirrors does a simple periscope use?
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 measure it (b) we change it (c) we keep it the same
32. 32.True or false: a dull brick reflects light poorly. (a) True (b) False
33. 33.True or false: a rough wooden board reflects light poorly. (a) True (b) False
34. 34.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) a dull brick (d) a rough wooden board
35. 35.⚖️ 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 measure it (c) we keep it the same
36. 36.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) a shiny steel plate (d) still clear water
37. 37.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a pilot in a plane (c) a farmer (d) a baker
38. 38.🧺 Which of these is needed for the periscope? (a) vinegar (b) a ruler (c) a magnet (d) a balloon
39. 39.🔭 How many times does light bounce off a mirror in a simple periscope?
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True

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