Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 848 · 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.True or false: vinegar is not needed for the periscope. (a) True (b) False
2. 2.True or false: a ruler is not needed for the periscope. (a) True (b) False
3. 3.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) a ruler (d) turmeric powder
5. 5.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) two small mirrors (d) a magnet
6. 6.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
7. 7.True or false: a battery cell is needed for the periscope. (a) False (b) True
8. 8.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
9. 9.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a tree (d) a friend’s toy
10. 10.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
11. 11.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
12. 12.True or false: still clear water reflects light poorly. (a) True (b) False
13. 13.⚖️ 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
14. 14.⚖️ 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) True (b) False
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.🔭 How many mirrors does a simple periscope use?
17. 17.⚖️ 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 angle of the mirrors (c) the same mirrors (d) how clear the view is
18. 18.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.🔍 Which is the odd one out? (a) a rough wooden board (b) a shiny steel plate (c) still clear water (d) a mirror
20. 20.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) taller walls (c) the ground (d) nothing at all
21. 21.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) aluminium foil (d) black cloth
22. 22.⚖️ 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
23. 23.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) big wall mirrors (d) loose glass panes
24. 24.🔭 Which of these reflects light well? (a) black cloth (b) still clear water (c) dark soil (d) a rough wooden board
25. 25.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
26. 26.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
27. 27.🧺 Which of these is not needed for the periscope? (a) vinegar (b) a pencil (c) an empty juice carton (d) two small mirrors
28. 28.⚖️ 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
29. 29.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) upside down only (c) much bigger (d) in colour
30. 30.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.True or false: a dull brick reflects light well. (a) True (b) False
32. 32.🔭 How many times does light bounce off a mirror in a simple periscope?
33. 33.⚖️ 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 keep it the same (c) we measure it
34. 34.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 180 degrees (d) 45 degrees
36. 36.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) two small mirrors (c) a pencil (d) a ruler
37. 37.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) yeast (c) turmeric powder (d) a balloon
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
39. 39.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) still clear water (d) dark soil
40. 40.True or false: a balloon is not needed for the periscope. (a) True (b) False

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