Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 672 · 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.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
2. 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
3. 3.True or false: a rough wooden board reflects light poorly. (a) False (b) True
4. 4.⚖️ 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
5. 5.True or false: yeast is not needed for the periscope. (a) False (b) True
6. 6.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) a balloon (d) an empty juice carton
7. 7.🧺 Which of these is needed for the periscope? (a) a magnet (b) two small mirrors (c) a balloon (d) yeast
8. 8.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) black cloth (d) still clear water
10. 10.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
11. 11.⚖️ 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
12. 12.🧺 Which of these is needed for the periscope? (a) a magnet (b) sticky tape (c) yeast (d) turmeric powder
13. 13.⚖️ 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
14. 14.True or false: a mirror reflects light poorly. (a) False (b) True
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a balloon (c) two small mirrors (d) a ruler
17. 17.🧺 Which of these is not needed for the periscope? (a) a balloon (b) two small mirrors (c) a pencil (d) an empty juice carton
18. 18.⚖️ 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) the angle of the mirrors (d) the same mirrors
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a pencil (d) a battery cell
20. 20.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) aluminium foil (d) a dull brick
21. 21.True or false: sticky tape is needed for the periscope. (a) True (b) False
22. 22.⚖️ 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) False (b) True
23. 23.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) the ground (d) taller walls
24. 24.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) a ruler (d) a battery cell
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) turmeric powder (c) sticky tape (d) a ruler
26. 26.⚖️ 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 keep it the same (c) we change it
27. 27.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) a battery cell (d) a ruler
28. 28.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 90 degrees (d) 45 degrees
29. 29.True or false: a pencil is needed for the periscope. (a) False (b) True
30. 30.⚖️ 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 keep it the same (b) we measure it (c) we change it
31. 31.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a rough wooden board (d) a shiny steel plate
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
33. 33.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
34. 34.True or false: a ruler is not needed for the periscope. (a) True (b) False
35. 35.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) black cloth
36. 36.📘 Light bouncing off a mirror is called ___. (a) reflection (b) refraction (c) magnetism (d) evaporation
37. 37.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) still clear water (d) a mirror
38. 38.🛟 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
39. 39.⚖️ 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 measure it (b) we change it (c) we keep it the same
40. 40.True or false: a shiny steel plate reflects light poorly. (a) False (b) True

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