Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 793 · 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.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) dark soil (d) still clear water
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) only short walls (d) taller walls
5. 5.⚖️ 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 same mirrors
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same mirrors (c) the angle of the mirrors (d) the same carton
7. 7.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) black cloth (d) still clear water
8. 8.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) a mirror (d) a dull brick
9. 9.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
10. 10.🔭 Which of these reflects light poorly? (a) aluminium foil (b) still clear water (c) a shiny steel plate (d) a rough wooden board
11. 11.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
12. 12.True or false: two small mirrors is needed for the periscope. (a) True (b) False
13. 13.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
14. 14.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) a pencil (d) two small mirrors
15. 15.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) aluminium foil (d) dark soil
16. 16.🧺 Which of these is not needed for the periscope? (a) yeast (b) sticky tape (c) an empty juice carton (d) a pencil
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
19. 19.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.⚖️ 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 keep it the same (b) we measure it (c) we change it
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same mirrors (c) the angle of the mirrors (d) the same carton
22. 22.⚖️ 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
23. 23.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see germs (d) see over a wall
24. 24.🧺 Which of these is needed for the periscope? (a) a pencil (b) vinegar (c) a balloon (d) a magnet
25. 25.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.⚖️ 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
27. 27.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) the Sun (d) a wall
28. 28.⚖️ 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
29. 29.🧺 Which of these is needed for the periscope? (a) vinegar (b) an empty juice carton (c) a balloon (d) a magnet
30. 30.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
31. 31.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) magnetism (c) refraction (d) reflection
32. 32.True or false: sticky tape is not needed for the periscope. (a) False (b) True
33. 33.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) dark soil (d) a shiny steel plate
34. 34.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 180 degrees (d) 45 degrees
35. 35.⚖️ 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
36. 36.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
37. 37.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a balloon (c) turmeric powder (d) a magnet
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) a ruler (d) two small mirrors
39. 39.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
40. 40.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) aluminium foil (d) still clear water

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