Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 984 · 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.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a pilot in a plane (c) a farmer (d) a baker
2. 2.True or false: a balloon is not needed for the periscope. (a) True (b) False
3. 3.⚖️ 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
4. 4.True or false: a rough wooden board reflects light well. (a) False (b) True
5. 5.🔭 What does a periscope let you do? (a) see over a wall (b) see germs (c) see in the dark (d) hear far sounds
6. 6.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a shiny steel plate (d) black cloth
7. 7.True or false: sticky tape is not needed for the periscope. (a) False (b) True
8. 8.True or false: a rough wooden board reflects light poorly. (a) False (b) True
9. 9.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
10. 10.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) only short walls (d) taller walls
11. 11.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
12. 12.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
14. 14.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
15. 15.🔭 Which of these reflects light poorly? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) black cloth
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 carton (c) how clear the view is (d) the same light
17. 17.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
20. 20.🔭 Why must the two mirrors face each other and be parallel? (a) so light reaches the eye (b) so it looks shiny (c) to make it heavy (d) so it can float
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) two small mirrors (d) an empty juice carton
22. 22.🔭 How many mirrors does a simple periscope use?
23. 23.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) a mirror (d) a rough wooden board
24. 24.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) aluminium foil (d) dark soil
25. 25.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors
27. 27.🔭 Which of these reflects light well? (a) a mirror (b) black cloth (c) a rough wooden board (d) a dull brick
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a balloon (c) two small mirrors (d) a pencil
29. 29.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
31. 31.🔭 How many times does light bounce off a mirror in a simple periscope?
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) a pencil (d) an empty juice carton
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
34. 34.🧺 Which of these is not needed for the periscope? (a) yeast (b) sticky tape (c) an empty juice carton (d) a ruler
35. 35.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a shiny steel plate (d) a mirror
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.🧺 Which of these is needed for the periscope? (a) yeast (b) an empty juice carton (c) a battery cell (d) a balloon
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a ruler (d) a magnet
39. 39.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
40. 40.🔮 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

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