Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 768 · 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 aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.True or false: a battery cell is not needed for the periscope. (a) True (b) False
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
4. 4.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
5. 5.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) two small mirrors (d) yeast
6. 6.🔭 Which of these reflects light poorly? (a) a dull brick (b) a shiny steel plate (c) aluminium foil (d) a mirror
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.🔭 How many mirrors does a simple periscope use?
9. 9.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
10. 10.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) an empty juice carton (d) sticky tape
12. 12.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a submarine crew (d) a farmer
13. 13.True or false: aluminium foil reflects light poorly. (a) True (b) False
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) a ruler (d) a pencil
15. 15.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) plastic safety mirrors (d) loose glass panes
16. 16.⚖️ 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
17. 17.🧺 Which of these is needed for the periscope? (a) a battery cell (b) an empty juice carton (c) yeast (d) a magnet
18. 18.🛟 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
19. 19.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a balloon (c) a ruler (d) a pencil
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same mirrors (c) how clear the view is (d) the same carton
21. 21.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) upside down only (d) flipped left to right
23. 23.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) still clear water (d) dark soil
25. 25.True or false: still clear water reflects light poorly. (a) True (b) False
26. 26.True or false: a rough wooden board reflects light well. (a) True (b) False
27. 27.True or false: black cloth reflects light poorly. (a) False (b) True
28. 28.🔭 How many times does light bounce off a mirror in a simple periscope?
29. 29.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) two small mirrors (d) yeast
31. 31.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
32. 32.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) two pictures (d) only darkness
33. 33.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) dark soil (d) still clear water
34. 34.⚖️ 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
35. 35.True or false: aluminium foil reflects light well. (a) True (b) False
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a mirror (d) still clear water
38. 38.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) taller walls (d) only short walls
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
40. 40.🧺 Which of these is needed for the periscope? (a) a ruler (b) vinegar (c) a balloon (d) turmeric powder

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