Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 380 · 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.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) two pictures (d) a brighter view
2. 2.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) aluminium foil (d) a shiny steel plate
3. 3.True or false: still clear water reflects light well. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) aluminium foil (d) a dull brick
5. 5.True or false: a battery cell is not needed for the periscope. (a) False (b) True
6. 6.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a wall (d) a friend’s toy
8. 8.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) upside down only (d) flipped left to right
9. 9.⚖️ 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
10. 10.True or false: yeast is needed for the periscope. (a) False (b) True
11. 11.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.⚖️ 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 carton (c) the angle of the mirrors (d) the same mirrors
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) vinegar
15. 15.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.True or false: a dull brick reflects light well. (a) False (b) True
17. 17.True or false: dark soil reflects light poorly. (a) True (b) False
18. 18.⚖️ 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 angle of the mirrors (c) the same carton
19. 19.🧺 Which of these is needed for the periscope? (a) a balloon (b) a ruler (c) vinegar (d) a battery cell
20. 20.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) black cloth (d) dark soil
21. 21.⚖️ 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) True (b) False
22. 22.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
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.🔍 Which is the odd one out? (a) a shiny steel plate (b) dark soil (c) aluminium foil (d) a mirror
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a pencil (c) a balloon (d) vinegar
27. 27.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
28. 28.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
29. 29.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🔭 Which of these reflects light well? (a) a rough wooden board (b) a shiny steel plate (c) black cloth (d) dark soil
31. 31.⚖️ 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 change it (b) we measure it (c) we keep it the same
32. 32.True or false: a rough wooden board reflects light poorly. (a) True (b) False
33. 33.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) aluminium foil (c) a mirror (d) a shiny steel plate
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a battery cell (d) a pencil
35. 35.⚖️ 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 object we look at (c) how clear the view is (d) the same carton
36. 36.🔭 Which of these reflects light well? (a) aluminium foil (b) dark soil (c) black cloth (d) a dull brick
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a magnet (d) an empty juice carton
38. 38.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a battery cell (c) yeast (d) a balloon
39. 39.⚖️ 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 keep it the same (c) we measure it
40. 40.🔭 How many mirrors does a simple periscope use?

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