Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 756 · 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 mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.True or false: sticky tape is not needed for the periscope. (a) True (b) False
5. 5.🔮 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
6. 6.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) still clear water (d) a mirror
7. 7.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) the ground (d) nothing at all
8. 8.⚖️ 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) how clear the view is (c) the same mirrors (d) the angle of the mirrors
9. 9.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) a pencil (d) two small mirrors
11. 11.⚖️ 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 change it (c) we measure it
12. 12.⚖️ 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) False (b) True
13. 13.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
14. 14.🔭 How many times does light bounce off a mirror in a simple periscope?
15. 15.True or false: vinegar is not needed for the periscope. (a) True (b) False
16. 16.⚖️ 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) False (b) True
17. 17.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
18. 18.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a shiny steel plate (d) still clear water
19. 19.True or false: a pencil is not needed for the periscope. (a) True (b) False
20. 20.⚖️ 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) the same light (c) how clear the view is
21. 21.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) big wall mirrors (d) plastic safety mirrors
22. 22.True or false: turmeric powder is needed for the periscope. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) still clear water (d) a mirror
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a battery cell (c) sticky tape (d) two small mirrors
26. 26.📘 Light bouncing off a mirror is called ___. (a) reflection (b) refraction (c) magnetism (d) evaporation
27. 27.🛟 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
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
29. 29.⚖️ 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) how clear the view is (c) the angle of the mirrors
30. 30.🔮 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
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the object we look at (c) the angle of the mirrors
32. 32.True or false: a mirror reflects light well. (a) False (b) True
33. 33.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) still clear water (d) a mirror
34. 34.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) a magnet (d) a pencil
37. 37.⚖️ 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) how clear the view is (c) the same mirrors (d) the same light
38. 38.True or false: a dull brick reflects light well. (a) True (b) False
39. 39.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
40. 40.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees

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