Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 301 · 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 aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 180 degrees (d) 10 degrees
3. 3.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
4. 4.🔭 Which of these reflects light well? (a) a dull brick (b) aluminium foil (c) black cloth (d) a rough wooden board
5. 5.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) an empty juice carton (d) yeast
6. 6.🔍 Which is the odd one out? (a) a rough wooden board (b) aluminium foil (c) a mirror (d) still clear water
7. 7.⚖️ 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 measure it (c) we change it
8. 8.True or false: a battery cell is needed for the periscope. (a) False (b) True
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a pencil (c) a ruler (d) an empty juice carton
10. 10.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
11. 11.True or false: yeast is not needed for the periscope. (a) True (b) False
12. 12.⚖️ 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
13. 13.True or false: sticky tape is not needed for the periscope. (a) True (b) False
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) an empty juice carton (d) a pencil
15. 15.⚖️ 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 angle of the mirrors (c) the same carton (d) the object we look at
16. 16.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) an empty juice carton (c) sticky tape (d) two small mirrors
18. 18.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) a brighter view (d) only darkness
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
20. 20.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the periscope? (a) a balloon (b) yeast (c) a pencil (d) vinegar
22. 22.True or false: yeast is needed for the periscope. (a) False (b) True
23. 23.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
24. 24.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) refraction (d) magnetism
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
26. 26.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) a wall (d) the Sun
27. 27.True or false: a balloon is needed for the periscope. (a) True (b) False
28. 28.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
29. 29.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) a magnet (d) sticky tape
30. 30.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) dark soil (d) a dull brick
31. 31.True or false: a rough wooden board reflects light well. (a) True (b) False
32. 32.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) big wall mirrors (d) plastic safety mirrors
33. 33.⚖️ 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 angle of the mirrors (c) the same mirrors (d) how clear the view is
34. 34.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) vinegar (c) a pencil (d) sticky tape
35. 35.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) two small mirrors (d) a balloon
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a ruler (d) two small mirrors
37. 37.⚖️ 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 measure it (b) we keep it the same (c) we change it
38. 38.True or false: a dull brick reflects light well. (a) True (b) False
39. 39.⚖️ 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 object we look at (c) the angle of the mirrors
40. 40.🔭 How many mirrors does a simple periscope use?

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