Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 298 · 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.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) how clear the view is (c) the object we look at (d) the same carton
2. 2.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a pencil (c) turmeric powder (d) a magnet
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) two small mirrors (d) a balloon
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
6. 6.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
7. 7.🔭 How many mirrors does a simple periscope use?
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
9. 9.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
10. 10.⚖️ 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 mirrors (b) the same carton (c) the object we look at (d) the angle of the mirrors
11. 11.🔍 Which is the odd one out? (a) a shiny steel plate (b) a dull brick (c) aluminium foil (d) still clear water
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) two small mirrors (c) an empty juice carton (d) sticky tape
13. 13.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) upside down only (d) flipped left to right
14. 14.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) dark soil (d) still clear water
15. 15.🔭 Which of these reflects light well? (a) dark soil (b) a shiny steel plate (c) a dull brick (d) a rough wooden board
16. 16.True or false: a mirror reflects light poorly. (a) True (b) False
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) two small mirrors (d) yeast
18. 18.🔭 How many times does light bounce off a mirror in a simple periscope?
19. 19.🧺 Which of these is not needed for the periscope? (a) yeast (b) two small mirrors (c) a ruler (d) a pencil
20. 20.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a ruler (c) turmeric powder (d) two small mirrors
21. 21.⚖️ 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 keep it the same (c) we change it
22. 22.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
24. 24.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) a dull brick (d) black cloth
25. 25.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
26. 26.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so it can float (c) so light reaches the eye (d) to make it heavy
27. 27.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) a dull brick (d) still clear water
28. 28.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
29. 29.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a pencil (c) an empty juice carton (d) sticky tape
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a mirror (d) aluminium foil
33. 33.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a shiny steel plate (d) a rough wooden board
34. 34.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a dull brick (d) a mirror
35. 35.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) evaporation (d) magnetism
36. 36.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) the ground (d) only short walls
39. 39.True or false: a pencil is not needed for the periscope. (a) True (b) False
40. 40.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed

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