Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 605 · 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 carton”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🔭 Which of these reflects light poorly? (a) a dull brick (b) a shiny steel plate (c) still clear water (d) a mirror
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same carton (c) the object we look at (d) the same light
6. 6.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
7. 7.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) black cloth (d) still clear water
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) two small mirrors (d) sticky tape
10. 10.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
11. 11.🔭 How many mirrors does a simple periscope use?
12. 12.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) an empty juice carton (d) yeast
13. 13.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
15. 15.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
16. 16.⚖️ 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 same carton (c) the same light (d) the angle of the mirrors
17. 17.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a rough wooden board
18. 18.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
19. 19.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) dark soil (d) a mirror
20. 20.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) hear far sounds (d) see germs
21. 21.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) a pencil (d) an empty juice carton
23. 23.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
24. 24.🧺 Which of these is needed for the periscope? (a) a ruler (b) turmeric powder (c) vinegar (d) a magnet
25. 25.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) vinegar (d) an empty juice carton
27. 27.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a shiny steel plate (d) a dull brick
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) a magnet (d) an empty juice carton
29. 29.⚖️ 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
30. 30.⚖️ 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
31. 31.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) two small mirrors (d) a battery cell
33. 33.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
34. 34.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) two small mirrors (d) a balloon
35. 35.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees
36. 36.🔭 How many times does light bounce off a mirror in a simple periscope?
37. 37.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) upside down only (d) flipped left to right
38. 38.True or false: a rough wooden board reflects light poorly. (a) True (b) False
39. 39.⚖️ 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) True (b) False
40. 40.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) a battery cell (d) a pencil

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