Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 307 · 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) flipped left to right (b) in colour (c) much bigger (d) upside down only
2. 2.True or false: aluminium foil reflects light well. (a) False (b) True
3. 3.⚖️ 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
4. 4.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
5. 5.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.True or false: sticky tape is not needed for the periscope. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) black cloth (d) dark soil
8. 8.True or false: a shiny steel plate reflects light well. (a) True (b) False
9. 9.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 90 degrees (d) 45 degrees
10. 10.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a magnet (c) yeast (d) a balloon
11. 11.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
12. 12.⚖️ 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) how clear the view is (c) the same light (d) the same mirrors
13. 13.True or false: a battery cell is not needed for the periscope. (a) False (b) True
14. 14.🔭 Which of these reflects light poorly? (a) a mirror (b) a dull brick (c) still clear water (d) aluminium foil
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
16. 16.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) plastic safety mirrors (d) loose glass panes
17. 17.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) a balloon (d) two small mirrors
18. 18.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) black cloth (d) a rough wooden board
19. 19.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
20. 20.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) nothing at all (d) the ground
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
22. 22.🔭 How many mirrors does a simple periscope use?
23. 23.True or false: a magnet is not needed for the periscope. (a) True (b) False
24. 24.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) black cloth (d) a dull brick
25. 25.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) vinegar (d) an empty juice carton
26. 26.⚖️ 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 object we look at (c) the same mirrors (d) the angle of the mirrors
27. 27.⚖️ 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
28. 28.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection
29. 29.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) an empty juice carton (d) two small mirrors
31. 31.🔭 How many times does light bounce off a mirror in a simple periscope?
32. 32.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a baker (d) a submarine crew
33. 33.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
34. 34.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) a dull brick (d) a mirror
35. 35.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) dark soil (d) a mirror
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.⚖️ 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) False (b) True
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) two small mirrors (c) a ruler (d) a pencil
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) two small mirrors (c) a pencil (d) a ruler
40. 40.⚖️ 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

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