Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 414 · 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 pencil is not needed for the periscope. (a) False (b) True
2. 2.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) a mirror (b) dark soil (c) still clear water (d) aluminium foil
5. 5.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) a shiny steel plate (d) black cloth
6. 6.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a dull brick (d) dark soil
7. 7.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a balloon (d) a ruler
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.🔭 Which of these reflects light poorly? (a) dark soil (b) a mirror (c) still clear water (d) a shiny steel plate
11. 11.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
12. 12.🧺 Which of these is needed for the periscope? (a) sticky tape (b) a balloon (c) a magnet (d) turmeric powder
13. 13.🔭 How many times does light bounce off a mirror in a simple periscope?
14. 14.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
15. 15.True or false: two small mirrors is needed for the periscope. (a) True (b) False
16. 16.⚖️ 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 same light (c) the same mirrors (d) the same carton
17. 17.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a submarine crew (d) a baker
18. 18.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
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 measure it (b) we keep it the same (c) we change it
20. 20.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) a rough wooden board
21. 21.True or false: sticky tape is not needed for the periscope. (a) False (b) True
22. 22.True or false: a mirror reflects light poorly. (a) True (b) False
23. 23.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
24. 24.True or false: black cloth reflects light well. (a) True (b) False
25. 25.True or false: aluminium foil reflects light well. (a) True (b) False
26. 26.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) only short walls (d) nothing at all
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) yeast (d) a pencil
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
29. 29.⚖️ 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 same carton (c) the angle of the mirrors
30. 30.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
31. 31.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) flipped left to right (d) upside down only
32. 32.True or false: a rough wooden board reflects light poorly. (a) True (b) False
33. 33.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) a dull brick
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
35. 35.⚖️ 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) how clear the view is (c) the same light (d) the object we look at
36. 36.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 90 degrees (d) 10 degrees
37. 37.True or false: a shiny steel plate reflects light well. (a) False (b) True
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) a magnet (d) sticky tape
39. 39.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
40. 40.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) a magnet (d) a ruler

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