Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 441 · 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.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a mirror
2. 2.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a battery cell (d) an empty juice carton
4. 4.True or false: a mirror reflects light well. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a mirror (d) a shiny steel plate
6. 6.🔭 How many mirrors does a simple periscope use?
7. 7.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see germs (d) see over a wall
8. 8.True or false: a rough wooden board reflects light poorly. (a) True (b) False
9. 9.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.⚖️ 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 light
11. 11.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
12. 12.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) sticky tape (d) turmeric powder
16. 16.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
17. 17.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🔮 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
19. 19.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
20. 20.True or false: a magnet is not needed for the periscope. (a) False (b) True
21. 21.🧺 Which of these is needed for the periscope? (a) a ruler (b) a magnet (c) vinegar (d) yeast
22. 22.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) a dull brick (d) aluminium foil
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a pencil (d) an empty juice carton
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) False (b) True
25. 25.True or false: aluminium foil reflects light well. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a dull brick (d) still clear water
27. 27.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a dull brick (c) dark soil (d) black cloth
28. 28.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) a rough wooden board
29. 29.⚖️ 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
30. 30.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) dark soil (d) a shiny steel plate
31. 31.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) an empty juice carton (d) turmeric powder
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) a pencil (d) an empty juice carton
34. 34.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 90 degrees (d) 180 degrees
35. 35.⚖️ 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 mirrors (b) how clear the view is (c) the angle of the mirrors (d) the same light
36. 36.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
37. 37.True or false: a battery cell is not needed for the periscope. (a) False (b) True
38. 38.⚖️ 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
39. 39.True or false: aluminium foil reflects light poorly. (a) False (b) True
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the object we look at (c) the same light (d) how clear the view is

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