Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 288 · 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.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) aluminium foil (d) dark soil
2. 2.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
3. 3.⚖️ 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 object we look at
4. 4.⚖️ 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 angle of the mirrors (c) the same carton (d) the same mirrors
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) the same carton (c) how clear the view is
6. 6.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) dark soil (d) black cloth
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a magnet (d) a pencil
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.🔭 How many mirrors does a simple periscope use?
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) yeast (d) two small mirrors
12. 12.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 90 degrees (d) 180 degrees
13. 13.True or false: turmeric powder is needed for the periscope. (a) True (b) False
14. 14.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.True or false: a rough wooden board reflects light well. (a) False (b) True
16. 16.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) a rough wooden board (d) a mirror
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) turmeric powder (d) a pencil
19. 19.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) yeast (c) a balloon (d) a magnet
20. 20.True or false: a mirror reflects light poorly. (a) True (b) False
21. 21.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) a balloon (d) an empty juice carton
22. 22.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) magnetism (d) refraction
23. 23.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
25. 25.True or false: vinegar is needed for the periscope. (a) False (b) True
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a pencil (d) a battery cell
27. 27.True or false: turmeric powder is not needed for the periscope. (a) False (b) True
28. 28.🧺 Do we need a magnet 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.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) a rough wooden board (d) dark soil
31. 31.🔭 What does a periscope let you do? (a) hear far sounds (b) see in the dark (c) see germs (d) see over a wall
32. 32.True or false: a dull brick reflects light well. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) still clear water (d) a mirror
34. 34.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a pilot in a plane (d) a submarine crew
35. 35.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) a rough wooden board (d) black cloth
36. 36.⚖️ 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 change it (c) we measure it
37. 37.True or false: a pencil is not needed for the periscope. (a) False (b) True
38. 38.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) sticky tape (d) a battery cell
39. 39.⚖️ 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 keep it the same (c) we measure it
40. 40.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) the Sun (d) a wall

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