Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 624 · 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.True or false: dark soil reflects light well. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a rough wooden board (d) a dull brick
3. 3.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 90 degrees (d) 180 degrees
4. 4.True or false: black cloth reflects light well. (a) True (b) False
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) yeast (d) a ruler
6. 6.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) black cloth (d) still clear water
7. 7.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) vinegar (d) a pencil
8. 8.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) turmeric powder (d) two small mirrors
10. 10.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) a friend’s toy (d) the Sun
11. 11.⚖️ 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 mirrors (c) the angle of the mirrors (d) the same carton
12. 12.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
13. 13.True or false: still clear water reflects light poorly. (a) True (b) False
14. 14.True or false: a ruler is not needed for the periscope. (a) False (b) True
15. 15.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
16. 16.🔭 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
17. 17.⚖️ 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
18. 18.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
19. 19.True or false: yeast is needed for the periscope. (a) False (b) True
20. 20.True or false: a ruler is needed for the periscope. (a) False (b) True
21. 21.True or false: a battery cell is needed for the periscope. (a) True (b) False
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) a balloon (d) a pencil
23. 23.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) in colour (d) flipped left to right
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
26. 26.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
27. 27.True or false: a battery cell is not needed for the periscope. (a) False (b) True
28. 28.🔭 How many times does light bounce off a mirror in a simple periscope?
29. 29.🧺 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) vinegar
30. 30.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
31. 31.True or false: a magnet is not needed for the periscope. (a) False (b) True
32. 32.⚖️ 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 keep it the same (c) we change it
33. 33.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a rough wooden board (d) a shiny steel plate
34. 34.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) the ground (d) only short walls
37. 37.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
38. 38.⚖️ 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
39. 39.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) yeast (c) a magnet (d) vinegar
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a battery cell (c) a ruler (d) sticky tape

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