Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 531 · 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 “the same light”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a dull brick (c) a rough wooden board (d) dark soil
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 same light (b) how clear the view is (c) the same carton (d) the angle of the mirrors
4. 4.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see germs (d) see in the dark
5. 5.⚖️ 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
6. 6.🔭 How many mirrors does a simple periscope use?
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) the angle of the mirrors (c) how clear the view is
9. 9.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) dark soil (d) a shiny steel plate
10. 10.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) a brighter view (d) only darkness
11. 11.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a mirror (d) a rough wooden board
12. 12.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
13. 13.🧺 Which of these is not needed for the periscope? (a) a pencil (b) turmeric powder (c) sticky tape (d) two small mirrors
14. 14.True or false: yeast is not needed for the periscope. (a) False (b) True
15. 15.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a magnet (d) a ruler
18. 18.True or false: a rough wooden board reflects light poorly. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a shiny steel plate (d) still clear water
20. 20.True or false: a battery cell is not needed for the periscope. (a) True (b) False
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
22. 22.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) a battery cell (d) two small mirrors
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a battery cell (d) a ruler
26. 26.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
27. 27.⚖️ 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
28. 28.True or false: black cloth reflects light well. (a) True (b) False
29. 29.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
30. 30.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
32. 32.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
33. 33.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) dark soil (b) aluminium foil (c) a rough wooden board (d) a dull brick
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
37. 37.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) yeast
39. 39.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a rough wooden board (d) black cloth
40. 40.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) a magnet (d) an empty juice carton

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