Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 69 · 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.🔮 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
2. 2.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) yeast (c) vinegar (d) sticky tape
3. 3.True or false: turmeric powder is needed for the periscope. (a) True (b) False
4. 4.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
5. 5.True or false: a rough wooden board reflects light poorly. (a) False (b) True
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) an empty juice carton (d) a ruler
7. 7.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.⚖️ 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 change it (c) we measure it
9. 9.🔭 Which of these reflects light poorly? (a) black cloth (b) a mirror (c) still clear water (d) aluminium foil
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True
11. 11.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
12. 12.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) only darkness (d) a brighter view
13. 13.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) dark soil (d) a shiny steel plate
14. 14.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) a dull brick (d) dark soil
15. 15.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) black cloth (d) a shiny steel plate
17. 17.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) dark soil (d) a mirror
18. 18.True or false: a battery cell is not needed for the periscope. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a rough wooden board (d) a mirror
20. 20.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
21. 21.🧺 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) a battery cell
22. 22.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) two small mirrors (d) a battery cell
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the angle of the mirrors (c) the object we look at (d) how clear the view is
24. 24.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) the ground (c) nothing at all (d) taller walls
25. 25.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) refraction (d) reflection
26. 26.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a pencil (c) a balloon (d) a battery cell
27. 27.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a submarine crew (d) a farmer
28. 28.⚖️ 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 keep it the same (c) we measure it
29. 29.True or false: a balloon is not needed for the periscope. (a) True (b) False
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) the object we look at (c) how clear the view is
31. 31.True or false: aluminium foil reflects light poorly. (a) True (b) False
32. 32.⚖️ 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 angle of the mirrors (c) the same carton
33. 33.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) still clear water (d) a shiny steel plate
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so light reaches the eye (c) so it can float (d) so it looks shiny
36. 36.🔭 How many times does light bounce off a mirror in a simple periscope?
37. 37.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) a rough wooden board (d) dark soil
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) two small mirrors (d) vinegar

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