Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 271 · 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.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a mirror (d) dark soil
2. 2.🧺 Which of these is needed for the periscope? (a) yeast (b) turmeric powder (c) an empty juice carton (d) a battery cell
3. 3.⚖️ 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
4. 4.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) a wall (d) the Sun
5. 5.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) False (b) True
7. 7.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) the ground (c) only short walls (d) nothing at all
8. 8.True or false: vinegar is needed for the periscope. (a) True (b) False
9. 9.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
11. 11.True or false: a pencil is not needed for the periscope. (a) True (b) False
12. 12.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 180 degrees (d) 10 degrees
13. 13.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) a shiny steel plate (d) black cloth
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) sticky tape (d) yeast
15. 15.True or false: sticky tape is not needed for the periscope. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) dark soil (b) aluminium foil (c) a mirror (d) still clear water
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.🔭 Which of these reflects light well? (a) a shiny steel plate (b) dark soil (c) black cloth (d) a dull brick
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) how clear the view is (c) the angle of the mirrors
20. 20.🔭 What does a periscope let you do? (a) see germs (b) see over a wall (c) hear far sounds (d) see in the dark
21. 21.True or false: two small mirrors is needed for the periscope. (a) False (b) True
22. 22.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) turmeric powder (c) an empty juice carton (d) sticky tape
24. 24.True or false: turmeric powder is needed for the periscope. (a) True (b) False
25. 25.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) black cloth (d) dark soil
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the angle of the mirrors (c) the same light (d) the same mirrors
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) the same carton (c) how clear the view is
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
32. 32.🧺 Which of these is not needed for the periscope? (a) a magnet (b) an empty juice carton (c) a ruler (d) sticky tape
33. 33.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) a balloon (d) two small mirrors
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) the object we look at (c) how clear the view is
35. 35.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
36. 36.🔮 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
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a pencil (d) a magnet
38. 38.True or false: a magnet is needed for the periscope. (a) True (b) False
39. 39.🔭 Which of these reflects light poorly? (a) a dull brick (b) still clear water (c) a shiny steel plate (d) a mirror
40. 40.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) black cloth (d) still clear water

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