Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 789 · 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.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.⚖️ 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 measure it (b) we change it (c) we keep it the same
3. 3.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
4. 4.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
5. 5.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) yeast (c) a pencil (d) sticky tape
7. 7.True or false: a dull brick reflects light well. (a) False (b) True
8. 8.⚖️ 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 change it (b) we measure it (c) we keep it the same
9. 9.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) hear far sounds (d) see over a wall
10. 10.True or false: sticky tape is needed for the periscope. (a) True (b) False
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) an empty juice carton (d) a ruler
12. 12.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) taller walls (d) nothing at all
13. 13.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
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 measure it (b) we keep it the same (c) we change it
15. 15.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🔮 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
17. 17.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) two pictures (d) a brighter view
18. 18.🔭 Which of these reflects light well? (a) a shiny steel plate (b) black cloth (c) dark soil (d) a rough wooden board
19. 19.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
20. 20.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
21. 21.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) the Sun (d) a tree
22. 22.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
23. 23.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
24. 24.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a dull brick (d) black cloth
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) True (b) False
26. 26.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) two small mirrors (d) yeast
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) sticky tape (d) turmeric powder
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
30. 30.🔭 How many times does light bounce off a mirror in a simple periscope?
31. 31.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) dark soil (d) aluminium foil
32. 32.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) an empty juice carton (d) a magnet
33. 33.True or false: a ruler is needed for the periscope. (a) False (b) True
34. 34.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
35. 35.🔭 How many mirrors does a simple periscope use?
36. 36.⚖️ 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 object we look at (c) the same carton (d) the angle of the mirrors
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the object we look at (c) the same mirrors (d) the angle of the mirrors
38. 38.True or false: a balloon is not needed for the periscope. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) still clear water (d) a mirror
40. 40.True or false: two small mirrors is needed for the periscope. (a) False (b) True

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