Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 463 · 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 angle of the mirrors is kept the same. (a) True (b) False
2. 2.True or false: sticky tape is needed for the periscope. (a) False (b) True
3. 3.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
4. 4.⚖️ 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
5. 5.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) vinegar (d) sticky tape
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) two small mirrors (d) a magnet
7. 7.True or false: a magnet is needed for the periscope. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) black cloth (d) a dull brick
9. 9.True or false: still clear water reflects light poorly. (a) False (b) True
10. 10.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 10 degrees (d) 90 degrees
11. 11.⚖️ 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
12. 12.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) flipped left to right (d) in colour
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
16. 16.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) the ground (d) only short walls
17. 17.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a rough wooden board (d) aluminium foil
18. 18.🔭 Which of these reflects light poorly? (a) a mirror (b) a dull brick (c) still clear water (d) aluminium foil
19. 19.⚖️ 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 change it (b) we measure it (c) we keep it the same
20. 20.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a ruler (c) sticky tape (d) a pencil
22. 22.🔭 How many mirrors does a simple periscope use?
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) an empty juice carton (c) a pencil (d) two small mirrors
24. 24.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
25. 25.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a pilot in a plane (d) a submarine crew
26. 26.🧺 Which of these is needed for the periscope? (a) a magnet (b) a ruler (c) yeast (d) a balloon
27. 27.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) a magnet (d) two small mirrors
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
30. 30.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
31. 31.⚖️ 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 object we look at
32. 32.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
33. 33.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) dark soil (d) a mirror
34. 34.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) loose glass panes (d) plastic safety mirrors
35. 35.⚖️ 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) True (b) False
36. 36.True or false: a shiny steel plate reflects light well. (a) False (b) True
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) turmeric powder (c) a pencil (d) sticky tape
38. 38.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
39. 39.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) a mirror (d) black cloth
40. 40.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a wall (c) a friend’s toy (d) a tree

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