Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 59 · 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 ruler (b) turmeric powder (c) two small mirrors (d) sticky tape
2. 2.⚖️ 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 same light (d) the same carton
3. 3.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a balloon (c) sticky tape (d) two small mirrors
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False
5. 5.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a rainbow (d) a brighter view
6. 6.True or false: a battery cell is needed for the periscope. (a) False (b) True
7. 7.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) an empty juice carton (d) two small mirrors
8. 8.🔭 Which of these reflects light poorly? (a) a mirror (b) a rough wooden board (c) a shiny steel plate (d) aluminium foil
9. 9.⚖️ 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
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so it looks shiny (d) so light reaches the eye
12. 12.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 10 degrees (d) 90 degrees
13. 13.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) nothing at all (d) taller walls
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
15. 15.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
16. 16.🔭 How many mirrors does a simple periscope use?
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) a balloon
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a mirror (d) aluminium foil
20. 20.🔭 Which of these reflects light well? (a) a dull brick (b) a shiny steel plate (c) dark soil (d) a rough wooden board
21. 21.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a rough wooden board
22. 22.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.⚖️ 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 carton (b) the object we look at (c) the same mirrors (d) the angle of the mirrors
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) a pencil (d) a battery cell
27. 27.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a shiny steel plate (d) dark soil
29. 29.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) a rough wooden board (d) dark soil
30. 30.⚖️ 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 measure it (b) we keep it the same (c) we change it
31. 31.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) magnetism (d) refraction
32. 32.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
33. 33.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
34. 34.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) a pencil (d) yeast
35. 35.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) a pencil (d) vinegar
36. 36.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.🧺 Which of these is needed for the periscope? (a) sticky tape (b) a balloon (c) a battery cell (d) a magnet
38. 38.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a submarine crew (d) a pilot in a plane
39. 39.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) much bigger (d) flipped left to right
40. 40.🧺 Which of these is needed for the periscope? (a) a magnet (b) yeast (c) turmeric powder (d) a ruler

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