Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 268 · 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 is the odd one out? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a dull brick
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 measure it (c) we change it
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
4. 4.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) sticky tape (c) two small mirrors (d) an empty juice carton
5. 5.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) dark soil (d) a mirror
6. 6.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
7. 7.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
8. 8.⚖️ 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 angle of the mirrors (c) the same carton (d) the same mirrors
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) a ruler (d) sticky tape
10. 10.🧺 Which of these is not needed for the periscope? (a) a balloon (b) two small mirrors (c) sticky tape (d) an empty juice carton
11. 11.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) evaporation (d) reflection
13. 13.🔭 Which of these reflects light poorly? (a) black cloth (b) aluminium foil (c) a shiny steel plate (d) a mirror
14. 14.True or false: a rough wooden board reflects light poorly. (a) True (b) False
15. 15.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.True or false: still clear water reflects light poorly. (a) True (b) False
17. 17.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
18. 18.⚖️ 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) the angle of the mirrors (c) how clear the view is
19. 19.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) an empty juice carton (c) a ruler (d) a pencil
21. 21.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
23. 23.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
24. 24.🔭 How many mirrors does a simple periscope use?
25. 25.⚖️ 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) the angle of the mirrors (d) how clear the view is
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) vinegar (d) a pencil
27. 27.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a rainbow (d) a brighter view
28. 28.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a balloon (c) a pencil (d) an empty juice carton
30. 30.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
31. 31.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) to make it heavy (c) so it can float (d) so light reaches the eye
32. 32.⚖️ 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 change it (b) we measure it (c) we keep it the same
33. 33.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a farmer (d) a submarine crew
34. 34.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.🔭 How many times does light bounce off a mirror in a simple periscope?
37. 37.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) a mirror (d) dark soil
38. 38.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) an empty juice carton (c) a ruler (d) two small mirrors
39. 39.True or false: black cloth reflects light well. (a) True (b) False
40. 40.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed

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