Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 166 · 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.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees
2. 2.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a pilot in a plane (c) a baker (d) a submarine crew
3. 3.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) two small mirrors (d) a magnet
4. 4.⚖️ 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 same light (c) the object we look at (d) the angle of the mirrors
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) vinegar
6. 6.⚖️ 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
7. 7.⚖️ 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) how clear the view is (c) the object we look at
8. 8.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
10. 10.True or false: a magnet 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) sticky tape (b) two small mirrors (c) a battery cell (d) a ruler
12. 12.🧺 Which of these is needed for the periscope? (a) yeast (b) a battery cell (c) two small mirrors (d) turmeric powder
13. 13.🔭 How many times does light bounce off a mirror in a simple periscope?
14. 14.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
15. 15.🔮 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
16. 16.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so light reaches the eye (d) so it looks shiny
17. 17.⚖️ 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 measure it (c) we change it
18. 18.True or false: a dull brick reflects light poorly. (a) True (b) False
19. 19.⚖️ 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
20. 20.True or false: a mirror reflects light well. (a) True (b) False
21. 21.⚖️ 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 keep it the same (b) we change it (c) we measure it
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) True (b) False
23. 23.True or false: a dull brick reflects light well. (a) True (b) False
24. 24.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) black cloth (d) dark soil
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) sticky tape (d) a magnet
26. 26.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the same mirrors (d) the angle of the mirrors
28. 28.True or false: a pencil is needed for the periscope. (a) False (b) True
29. 29.🧺 Which of these is needed for the periscope? (a) a pencil (b) a magnet (c) a balloon (d) turmeric powder
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a ruler (c) turmeric powder (d) an empty juice carton
31. 31.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) a mirror (d) aluminium foil
32. 32.True or false: vinegar is not needed for the periscope. (a) True (b) False
33. 33.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a magnet (c) a battery cell (d) turmeric powder
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
35. 35.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
36. 36.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) dark soil (d) a dull brick
37. 37.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
38. 38.🔍 Which is the odd one out? (a) dark soil (b) a shiny steel plate (c) still clear water (d) a mirror
39. 39.⚖️ 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 light (c) how clear the view is
40. 40.⚖️ 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

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