Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 440 · 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.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a rough wooden board (d) black cloth
3. 3.🔭 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
4. 4.True or false: yeast is not needed for the periscope. (a) False (b) True
5. 5.🔭 Which of these reflects light poorly? (a) black cloth (b) aluminium foil (c) a mirror (d) a shiny steel plate
6. 6.True or false: sticky tape is not needed for the periscope. (a) True (b) False
7. 7.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) a dull brick
8. 8.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
10. 10.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) dark soil (d) aluminium foil
11. 11.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) a rough wooden board (d) a dull brick
12. 12.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) a pencil (d) turmeric powder
13. 13.True or false: a dull brick reflects light poorly. (a) False (b) True
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a ruler (d) two small mirrors
15. 15.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) nothing at all (d) taller walls
16. 16.🔭 How many mirrors does a simple periscope use?
17. 17.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🧺 Which of these is needed for the periscope? (a) sticky tape (b) turmeric powder (c) yeast (d) a battery cell
19. 19.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a battery cell (d) two small mirrors
21. 21.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a dull brick (d) aluminium foil
22. 22.⚖️ 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
23. 23.True or false: a pencil is not needed for the periscope. (a) False (b) True
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) a ruler (d) vinegar
26. 26.⚖️ 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 carton (b) the angle of the mirrors (c) the object we look at (d) the same mirrors
27. 27.True or false: a magnet is needed for the periscope. (a) True (b) False
28. 28.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
29. 29.True or false: a ruler is needed for the periscope. (a) True (b) False
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.True or false: a balloon is not needed for the periscope. (a) True (b) False
32. 32.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
33. 33.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
34. 34.⚖️ 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 change it (b) we keep it the same (c) we measure it
35. 35.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
36. 36.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.⚖️ 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 measure it (b) we change it (c) we keep it the same
38. 38.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a brighter view (d) a rainbow
39. 39.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) two small mirrors (d) a balloon
40. 40.⚖️ 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

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