Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 585 · 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.True or false: a shiny steel plate reflects light well. (a) False (b) True
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a ruler (d) a pencil
3. 3.🔭 Which of these reflects light poorly? (a) a mirror (b) a dull brick (c) aluminium foil (d) still clear water
4. 4.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) dark soil (d) a dull brick
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 object we look at
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) broken glass bits (d) loose glass panes
7. 7.⚖️ 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
8. 8.⚖️ 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 measure it (c) we change it
9. 9.True or false: a magnet is needed for the periscope. (a) True (b) False
10. 10.🔭 How many mirrors does a simple periscope use?
11. 11.🧺 Which of these is needed for the periscope? (a) a magnet (b) an empty juice carton (c) a balloon (d) a battery cell
12. 12.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
13. 13.True or false: vinegar is not needed for the periscope. (a) True (b) False
14. 14.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) aluminium foil (c) still clear water (d) a shiny steel plate
15. 15.🧺 Which of these is needed for the periscope? (a) a battery cell (b) two small mirrors (c) a balloon (d) vinegar
16. 16.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.True or false: dark soil reflects light poorly. (a) True (b) False
19. 19.🧺 Which of these is needed for the periscope? (a) a magnet (b) a pencil (c) a battery cell (d) vinegar
20. 20.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
21. 21.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) a rainbow (d) two pictures
22. 22.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) a shiny steel plate (d) aluminium foil
23. 23.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
24. 24.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
25. 25.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a tree (d) a friend’s toy
26. 26.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a dull brick
28. 28.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a pilot in a plane (c) a baker (d) a submarine crew
29. 29.⚖️ 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 light (c) how clear the view is
30. 30.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see germs (d) see over a wall
31. 31.True or false: sticky tape is needed for the periscope. (a) True (b) False
32. 32.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) a pencil (d) a balloon
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) sticky tape (c) an empty juice carton (d) a ruler
34. 34.⚖️ 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
35. 35.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
36. 36.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same carton (c) how clear the view is (d) the same mirrors
38. 38.True or false: a balloon is not needed for the periscope. (a) True (b) False
39. 39.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
40. 40.⚖️ 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 mirrors (b) the object we look at (c) the angle of the mirrors (d) the same carton

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