Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 591 · 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? True or false: the object we look at is kept the same. (a) False (b) True
2. 2.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) only darkness (d) a brighter view
3. 3.🧺 Which of these is needed for the periscope? (a) yeast (b) a ruler (c) vinegar (d) turmeric powder
4. 4.True or false: a mirror reflects light poorly. (a) True (b) False
5. 5.🔭 Which of these reflects light poorly? (a) black cloth (b) a mirror (c) still clear water (d) a shiny steel plate
6. 6.⚖️ 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
7. 7.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
9. 9.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
10. 10.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) in colour (d) flipped left to right
11. 11.🔭 How many mirrors does a simple periscope use?
12. 12.⚖️ 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 same light (c) how clear the view is (d) the angle of the mirrors
13. 13.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
14. 14.⚖️ 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 same mirrors (c) the same carton (d) the same light
15. 15.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a wall (c) the Sun (d) a friend’s toy
16. 16.True or false: aluminium foil reflects light well. (a) False (b) True
17. 17.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) a shiny steel plate (d) dark soil
18. 18.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) plastic safety mirrors (d) loose glass panes
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) turmeric powder (d) an empty juice carton
21. 21.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a battery cell (d) sticky tape
23. 23.⚖️ 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 measure it (c) we keep it the same
24. 24.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
25. 25.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
26. 26.True or false: a rough wooden board reflects light well. (a) False (b) True
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a balloon (d) sticky tape
28. 28.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
29. 29.🔭 How many times does light bounce off a mirror in a simple periscope?
30. 30.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 90 degrees (d) 10 degrees
31. 31.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a ruler (d) vinegar
33. 33.True or false: a dull brick reflects light well. (a) False (b) True
34. 34.True or false: black cloth reflects light poorly. (a) False (b) True
35. 35.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a submarine crew (d) a pilot in a plane
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
37. 37.⚖️ 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 same light
38. 38.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
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) False (b) True
40. 40.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly

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