Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 438 · 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.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) still clear water (c) a mirror (d) a shiny steel plate
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.🔭 How many mirrors does a simple periscope use?
5. 5.⚖️ 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 change it (b) we measure it (c) we keep it the same
6. 6.True or false: a ruler is not needed for the periscope. (a) False (b) True
7. 7.🔭 How many times does light bounce off a mirror in a simple periscope?
8. 8.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
9. 9.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) a shiny steel plate (d) still clear water
10. 10.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a magnet (c) a pencil (d) a ruler
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a magnet (c) an empty juice carton (d) a ruler
14. 14.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) the ground (d) taller walls
18. 18.🧺 Which of these is needed for the periscope? (a) yeast (b) a ruler (c) a magnet (d) vinegar
19. 19.True or false: dark soil reflects light well. (a) False (b) True
20. 20.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) a brighter view (d) only darkness
21. 21.⚖️ 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) True (b) False
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
23. 23.🧺 Which of these is needed for the periscope? (a) a pencil (b) yeast (c) a battery cell (d) a balloon
24. 24.True or false: a mirror reflects light well. (a) False (b) True
25. 25.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) plastic safety mirrors (d) broken glass bits
28. 28.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) a pencil (d) a balloon
29. 29.🔭 Which of these reflects light poorly? (a) a mirror (b) dark soil (c) still clear water (d) aluminium foil
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a balloon (d) sticky tape
31. 31.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 90 degrees (d) 180 degrees
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 measure it (c) we change it
33. 33.True or false: two small mirrors is needed for the periscope. (a) True (b) False
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
35. 35.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
36. 36.⚖️ 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 mirrors (b) how clear the view is (c) the angle of the mirrors (d) the object we look at
37. 37.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
38. 38.True or false: a mirror reflects light poorly. (a) True (b) False
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) True (b) False
40. 40.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed

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