Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 467 · 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.⚖️ 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
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the same carton (c) how clear the view is (d) the angle of the mirrors
3. 3.📘 Light bouncing off a mirror is called ___. (a) reflection (b) refraction (c) magnetism (d) evaporation
4. 4.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) how clear the view is (c) the angle of the mirrors
6. 6.⚖️ 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
7. 7.⚖️ 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) the angle of the mirrors (c) the object we look at (d) the same carton
8. 8.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) dark soil (d) a mirror
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) two small mirrors (d) a battery cell
14. 14.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) an empty juice carton (d) two small mirrors
15. 15.True or false: dark soil reflects light well. (a) False (b) True
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) two small mirrors (d) a balloon
17. 17.🔭 Which of these reflects light well? (a) a rough wooden board (b) a shiny steel plate (c) dark soil (d) a dull brick
18. 18.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
19. 19.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a pencil (d) two small mirrors
21. 21.True or false: a dull brick reflects light well. (a) False (b) True
22. 22.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) big wall mirrors (d) broken glass bits
23. 23.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) aluminium foil (d) a shiny steel plate
24. 24.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 10 degrees (d) 90 degrees
25. 25.🧺 Which of these is not needed for the periscope? (a) a magnet (b) sticky tape (c) two small mirrors (d) a pencil
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a pencil (c) a ruler (d) an empty juice carton
27. 27.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) only short walls (d) nothing at all
28. 28.True or false: aluminium foil reflects light poorly. (a) True (b) False
29. 29.⚖️ 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 change it (b) we measure it (c) we keep it the same
30. 30.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) black cloth (d) a rough wooden board
31. 31.⚖️ 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 measure it (c) we change it
32. 32.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a mirror (d) black cloth
33. 33.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a mirror (d) a rough wooden board
34. 34.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
35. 35.True or false: a pencil is not needed for the periscope. (a) False (b) True
36. 36.⚖️ 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
37. 37.True or false: yeast is needed for the periscope. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a rough wooden board (d) a dull brick
39. 39.True or false: sticky tape is not needed for the periscope. (a) True (b) False
40. 40.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly

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