Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 772 · 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.🔭 How many mirrors does a simple periscope use?
2. 2.🧺 Which of these is not needed for the periscope? (a) a magnet (b) an empty juice carton (c) a pencil (d) two small mirrors
3. 3.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
4. 4.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a dull brick (c) a rough wooden board (d) black cloth
5. 5.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a rough wooden board (d) a dull brick
6. 6.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) a rainbow (d) two pictures
7. 7.⚖️ 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) False (b) True
8. 8.⚖️ 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 change it (c) we keep it the same
9. 9.🧺 Which of these is needed for the periscope? (a) vinegar (b) two small mirrors (c) a balloon (d) a magnet
10. 10.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
11. 11.⚖️ 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 keep it the same (b) we measure it (c) we change it
12. 12.True or false: a magnet is needed for the periscope. (a) False (b) True
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) two small mirrors (c) an empty juice carton (d) sticky tape
14. 14.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) two small mirrors (d) a pencil
16. 16.True or false: a dull brick reflects light poorly. (a) True (b) False
17. 17.🧺 Which of these is needed for the periscope? (a) yeast (b) an empty juice carton (c) a magnet (d) vinegar
18. 18.🧺 Which of these is needed for the periscope? (a) a ruler (b) a battery cell (c) a magnet (d) vinegar
19. 19.⚖️ 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 measure it (b) we change it (c) we keep it the same
20. 20.🔭 How many times does light bounce off a mirror in a simple periscope?
21. 21.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) a balloon (d) sticky tape
22. 22.True or false: dark soil reflects light poorly. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) a rough wooden board (d) black cloth
24. 24.True or false: yeast is not needed for the periscope. (a) False (b) True
25. 25.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) still clear water (d) a rough wooden board
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
27. 27.True or false: aluminium foil reflects light poorly. (a) True (b) False
28. 28.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a submarine crew (d) a pilot in a plane
29. 29.🔭 Which of these reflects light well? (a) a mirror (b) black cloth (c) dark soil (d) a rough wooden board
30. 30.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) black cloth (d) a shiny steel plate
31. 31.⚖️ 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) True (b) False
32. 32.True or false: a mirror reflects light poorly. (a) False (b) True
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a magnet (d) sticky tape
34. 34.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) much bigger (d) upside down only
36. 36.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) how clear the view is (c) the angle of the mirrors
39. 39.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
40. 40.⚖️ 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

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