Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 818 · 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) upside down only (c) much bigger (d) in colour
2. 2.True or false: a balloon is needed for the periscope. (a) True (b) False
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a ruler (d) yeast
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) how clear the view is (c) the same carton (d) the same mirrors
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
7. 7.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) two small mirrors (d) a battery cell
9. 9.🧺 Do we need yeast 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 kept the same? (a) how clear the view is (b) the angle of the mirrors (c) the same light
11. 11.⚖️ 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) how clear the view is (c) the object we look at
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) only short walls (d) the ground
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) a mirror (d) still clear water
16. 16.True or false: a ruler is needed for the periscope. (a) True (b) False
17. 17.True or false: a rough wooden board reflects light poorly. (a) False (b) True
18. 18.🧺 Which of these is not needed for the periscope? (a) yeast (b) sticky tape (c) an empty juice carton (d) a pencil
19. 19.True or false: a pencil is not needed for the periscope. (a) False (b) True
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a ruler (d) a magnet
21. 21.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
22. 22.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a shiny steel plate (d) a rough wooden board
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) vinegar (d) a ruler
24. 24.⚖️ 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
25. 25.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) only darkness (d) two pictures
27. 27.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a tree (d) a wall
28. 28.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a dull brick (d) still clear water
29. 29.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a balloon (d) a pencil
30. 30.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) evaporation (d) reflection
31. 31.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a pilot in a plane (d) a farmer
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) True (b) False
33. 33.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a battery cell (c) a balloon (d) sticky tape
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a shiny steel plate (d) a dull brick
37. 37.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) aluminium foil (c) still clear water (d) black cloth
38. 38.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 90 degrees (d) 45 degrees
39. 39.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
40. 40.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) dark soil

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