Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 556 · 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.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
2. 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
3. 3.True or false: a ruler is needed for the periscope. (a) False (b) True
4. 4.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
5. 5.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a mirror (d) a rough wooden board
7. 7.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) dark soil (d) aluminium foil
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) plastic safety mirrors (d) broken glass bits
11. 11.True or false: a battery cell is not needed for the periscope. (a) True (b) False
12. 12.True or false: aluminium foil reflects light poorly. (a) False (b) True
13. 13.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) the ground (d) taller walls
14. 14.🔍 Which is the odd one out? (a) black cloth (b) aluminium foil (c) a dull brick (d) a rough wooden board
15. 15.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) the Sun (d) a friend’s toy
16. 16.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
17. 17.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a mirror (d) black cloth
18. 18.⚖️ 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) the same carton (c) how clear the view is (d) the angle of the mirrors
19. 19.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) turmeric powder (d) an empty juice carton
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) yeast (c) an empty juice carton (d) two small mirrors
21. 21.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
22. 22.True or false: a magnet is not needed for the periscope. (a) True (b) False
23. 23.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) a battery cell (d) a pencil
24. 24.🔭 How many mirrors does a simple periscope use?
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) how clear the view is (c) the angle of the mirrors
26. 26.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) still clear water (d) aluminium foil
28. 28.🧺 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
29. 29.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) dark soil
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) True (b) False
32. 32.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) black cloth (d) still clear water
33. 33.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) dark soil (d) a mirror
34. 34.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) refraction (d) magnetism
36. 36.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees
37. 37.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
38. 38.True or false: turmeric powder is needed for the periscope. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a magnet (c) an empty juice carton (d) a ruler

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