Periscope STEM Project Worksheet

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

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