Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 869 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) sticky tape (d) a balloon
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) two small mirrors (d) a battery cell
3. 3.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) aluminium foil (d) black cloth
4. 4.⚖️ 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) False (b) True
5. 5.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) only darkness (d) a rainbow
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) an empty juice carton (d) a magnet
9. 9.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) dark soil (d) a dull brick
10. 10.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same light (c) the object we look at (d) how clear the view is
12. 12.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) the Sun (d) a wall
13. 13.True or false: still clear water reflects light poorly. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a mirror (d) a rough wooden board
15. 15.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) a dull brick
16. 16.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a rough wooden board (c) a mirror (d) aluminium foil
17. 17.⚖️ 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
18. 18.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) a dull brick
19. 19.True or false: sticky tape is needed for the periscope. (a) False (b) True
20. 20.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) an empty juice carton (c) two small mirrors (d) a pencil
21. 21.⚖️ 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
22. 22.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a mirror (d) a rough wooden board
23. 23.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) a dull brick (d) dark soil
24. 24.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a baker (d) a submarine crew
25. 25.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
26. 26.⚖️ 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 keep it the same (b) we measure it (c) we change it
27. 27.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.⚖️ 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
29. 29.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
30. 30.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) sticky tape (d) two small mirrors
32. 32.⚖️ 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) True (b) False
33. 33.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a ruler (c) an empty juice carton (d) sticky tape
34. 34.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) black cloth (d) a mirror
35. 35.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) dark soil (d) a shiny steel plate
37. 37.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a ruler (c) sticky tape (d) an empty juice carton
40. 40.🧺 Do we need yeast for the periscope? (a) not needed (b) needed

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