Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 677 · 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.🔭 How many times does light bounce off a mirror in a simple periscope?
2. 2.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) aluminium foil (d) still clear water
3. 3.True or false: a shiny steel plate reflects light well. (a) True (b) False
4. 4.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) an empty juice carton (c) a balloon (d) a ruler
5. 5.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
7. 7.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a baker (c) a farmer (d) a submarine crew
8. 8.🔭 Which of these reflects light well? (a) a mirror (b) a dull brick (c) black cloth (d) dark soil
9. 9.⚖️ 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
10. 10.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.🧺 Which of these is not needed for the periscope? (a) yeast (b) two small mirrors (c) a ruler (d) a pencil
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) a pencil (d) a ruler
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same carton (b) the angle of the mirrors (c) the same mirrors (d) the object we look at
15. 15.🔭 How many mirrors does a simple periscope use?
16. 16.🔭 Which of these reflects light well? (a) a rough wooden board (b) aluminium foil (c) a dull brick (d) black cloth
17. 17.⚖️ 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
18. 18.⚖️ 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
19. 19.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
20. 20.True or false: a rough wooden board reflects light well. (a) False (b) True
21. 21.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
22. 22.True or false: a dull brick reflects light well. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) a dull brick (d) a rough wooden board
24. 24.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) a rainbow (d) two pictures
25. 25.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
26. 26.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) see over a wall (d) hear far sounds
27. 27.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a battery cell (c) two small mirrors (d) an empty juice carton
28. 28.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
29. 29.⚖️ 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
30. 30.True or false: two small mirrors is needed for the periscope. (a) False (b) True
31. 31.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 90 degrees (d) 45 degrees
32. 32.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a dull brick (d) a shiny steel plate
33. 33.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) aluminium foil (d) a mirror
34. 34.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
35. 35.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) sticky tape (d) a pencil
37. 37.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) black cloth (d) a mirror
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a magnet (c) two small mirrors (d) sticky tape
39. 39.True or false: dark soil reflects light poorly. (a) False (b) True
40. 40.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) a ruler (d) yeast

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