Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 804 · 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 dull brick reflects light poorly. (a) True (b) False
2. 2.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
3. 3.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) sticky tape (d) turmeric powder
4. 4.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
5. 5.🔭 How many mirrors does a simple periscope use?
6. 6.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) aluminium foil (d) a shiny steel plate
7. 7.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
8. 8.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) only short walls (c) taller walls (d) the ground
9. 9.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) yeast (d) sticky tape
10. 10.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) flipped left to right (d) much bigger
11. 11.True or false: a rough wooden board reflects light poorly. (a) True (b) False
12. 12.🔭 How many times does light bounce off a mirror in a simple periscope?
13. 13.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) dark soil (d) a mirror
14. 14.True or false: a rough wooden board reflects light well. (a) True (b) False
15. 15.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a dull brick (c) black cloth (d) dark soil
16. 16.⚖️ 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 keep it the same (b) we measure it (c) we change it
17. 17.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) a rough wooden board (d) black cloth
18. 18.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 180 degrees (d) 10 degrees
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a ruler (d) a pencil
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) a ruler (d) two small mirrors
21. 21.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.True or false: a balloon is not needed for the periscope. (a) True (b) False
23. 23.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) a shiny steel plate (d) a rough wooden board
24. 24.True or false: dark soil reflects light well. (a) False (b) True
25. 25.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a farmer (d) a baker
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a battery cell (c) yeast (d) sticky tape
28. 28.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) broken glass bits (d) loose glass panes
29. 29.🧺 Which of these is needed for the periscope? (a) a battery cell (b) turmeric powder (c) a magnet (d) two small mirrors
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) sticky tape (d) a battery cell
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) turmeric powder (d) sticky tape
32. 32.True or false: yeast is needed for the periscope. (a) True (b) False
33. 33.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
34. 34.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.⚖️ 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 measure it (b) we keep it the same (c) we change it
36. 36.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
38. 38.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
39. 39.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False

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