Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 950 · 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: still clear water reflects light poorly. (a) False (b) True
2. 2.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same mirrors (c) the same light (d) how clear the view is
4. 4.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
5. 5.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) see germs (d) hear far sounds
6. 6.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) upside down only (d) much bigger
7. 7.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) a mirror (d) still clear water
8. 8.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.True or false: a shiny steel plate reflects light well. (a) True (b) False
10. 10.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) black cloth (d) a shiny steel plate
11. 11.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) plastic safety mirrors (d) big wall mirrors
12. 12.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
13. 13.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) a balloon (d) two small mirrors
15. 15.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
17. 17.⚖️ 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
18. 18.🧺 Which of these is not needed for the periscope? (a) a ruler (b) vinegar (c) a pencil (d) an empty juice carton
19. 19.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) a dull brick (d) a mirror
20. 20.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) aluminium foil (d) still clear water
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) sticky tape (d) an empty juice carton
23. 23.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) reflection (d) magnetism
24. 24.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) taller walls (d) nothing at all
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) an empty juice carton
26. 26.True or false: yeast is not needed for the periscope. (a) True (b) False
27. 27.🔭 How many mirrors does a simple periscope use?
28. 28.🧺 Which of these is not needed for the periscope? (a) a magnet (b) a ruler (c) a pencil (d) an empty juice carton
29. 29.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
30. 30.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
31. 31.True or false: sticky tape is not needed for the periscope. (a) True (b) False
32. 32.⚖️ 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 change it (b) we keep it the same (c) we measure it
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the same light (c) the angle of the mirrors
34. 34.True or false: dark soil reflects light poorly. (a) False (b) True
35. 35.True or false: black cloth reflects light well. (a) False (b) True
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a battery cell (c) sticky tape (d) a pencil
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) a mirror (d) dark soil
39. 39.⚖️ 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) how clear the view is (d) the same carton
40. 40.⚖️ 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 change it (c) we keep it the same

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