Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 879 · 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.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) a pencil (d) sticky tape
3. 3.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) sticky tape (d) a magnet
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) the object we look at (c) the same light (d) how clear the view is
5. 5.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a baker (d) a farmer
6. 6.⚖️ 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
7. 7.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) two pictures (c) only darkness (d) a brighter view
8. 8.🔭 Which of these reflects light well? (a) dark soil (b) a mirror (c) a rough wooden board (d) black cloth
9. 9.⚖️ 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
10. 10.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a magnet (d) sticky tape
12. 12.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a mirror (c) aluminium foil (d) a shiny steel plate
13. 13.⚖️ 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
14. 14.🔭 How many times does light bounce off a mirror in a simple periscope?
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a battery cell (d) sticky tape
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.True or false: a pencil is not needed for the periscope. (a) False (b) True
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the object we look at (c) the same mirrors (d) the same carton
20. 20.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) turmeric powder (c) two small mirrors (d) an empty juice carton
21. 21.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) plastic safety mirrors (d) big wall mirrors
22. 22.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a pencil (d) two small mirrors
24. 24.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
25. 25.True or false: sticky tape is not needed for the periscope. (a) True (b) False
26. 26.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) upside down only (d) in colour
27. 27.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.🔭 How many mirrors does a simple periscope use?
29. 29.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) yeast (d) a pencil
30. 30.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
31. 31.True or false: a pencil is needed for the periscope. (a) True (b) False
32. 32.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
33. 33.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) the angle of the mirrors (c) how clear the view is
35. 35.True or false: black cloth reflects light poorly. (a) False (b) True
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
37. 37.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
38. 38.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) dark soil (d) a rough wooden board
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) a rough wooden board (d) a dull brick

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