Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 136 · 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.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a rough wooden board (c) a mirror (d) still clear water
2. 2.🧺 Which of these is not needed for the periscope? (a) yeast (b) an empty juice carton (c) a pencil (d) a ruler
3. 3.True or false: a pencil is not needed for the periscope. (a) True (b) False
4. 4.True or false: dark soil reflects light poorly. (a) False (b) True
5. 5.True or false: still clear water reflects light poorly. (a) False (b) True
6. 6.True or false: turmeric powder is needed for the periscope. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a dull brick (d) a mirror
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) aluminium foil
10. 10.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) broken glass bits (d) big wall mirrors
11. 11.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a mirror (d) dark soil
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) a ruler (d) a pencil
13. 13.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a balloon (c) sticky tape (d) an empty juice carton
14. 14.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
15. 15.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
16. 16.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) taller walls (c) nothing at all (d) the ground
17. 17.⚖️ 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
18. 18.True or false: sticky tape is needed for the periscope. (a) False (b) True
19. 19.⚖️ 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 change it (c) we measure it
20. 20.⚖️ 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
21. 21.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) two small mirrors (d) yeast
23. 23.True or false: a balloon is needed for the periscope. (a) True (b) False
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) how clear the view is (c) the object we look at (d) the angle of the mirrors
25. 25.⚖️ 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) True (b) False
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 object we look at (b) the same carton (c) how clear the view is (d) the angle of the mirrors
27. 27.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) turmeric powder (c) a balloon (d) a magnet
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.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
31. 31.⚖️ 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
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 keep it the same (b) we change it (c) we measure it
33. 33.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
34. 34.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
35. 35.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
37. 37.🔭 Which of these reflects light poorly? (a) black cloth (b) a mirror (c) aluminium foil (d) a shiny steel plate
38. 38.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) a rainbow (d) two pictures
39. 39.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a mirror (d) a dull brick
40. 40.🔭 How many times does light bounce off a mirror in a simple periscope?

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