Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 625 · 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.🧺 Which of these is needed for the periscope? (a) a magnet (b) yeast (c) vinegar (d) a ruler
2. 2.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) a shiny steel plate
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the angle of the mirrors (c) the same carton (d) the object we look at
4. 4.🔭 How many mirrors does a simple periscope use?
5. 5.🔍 Which is the odd one out? (a) a dull brick (b) still clear water (c) a mirror (d) aluminium foil
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) turmeric powder (d) a ruler
7. 7.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) sticky tape (d) a battery cell
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
9. 9.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a pencil (d) vinegar
11. 11.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) dark soil
12. 12.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a mirror (c) still clear water (d) aluminium foil
13. 13.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) a dull brick (d) aluminium foil
14. 14.⚖️ 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
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
16. 16.🔭 How many times does light bounce off a mirror in a simple periscope?
17. 17.⚖️ 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
18. 18.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
19. 19.🔮 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
20. 20.True or false: a battery cell is needed for the periscope. (a) False (b) True
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
23. 23.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) reflection (d) refraction
24. 24.True or false: a mirror reflects light well. (a) True (b) False
25. 25.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) to make it heavy (c) so it looks shiny (d) so it can float
26. 26.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) in colour (d) flipped left to right
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) two small mirrors (d) a balloon
28. 28.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) aluminium foil (d) a mirror
29. 29.⚖️ 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
30. 30.⚖️ 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 light (c) the same carton (d) how clear the view is
31. 31.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a submarine crew (d) a baker
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) an empty juice carton (d) a battery cell
34. 34.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
35. 35.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a pencil (d) a ruler
37. 37.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) black cloth
38. 38.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) yeast (d) two small mirrors
40. 40.⚖️ 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

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