Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 319 · 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.True or false: a pencil is needed for the periscope. (a) False (b) True
2. 2.⚖️ 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
3. 3.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a baker (d) a submarine crew
4. 4.True or false: a mirror reflects light well. (a) False (b) True
5. 5.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🔭 How many times does light bounce off a mirror in a simple periscope?
7. 7.True or false: dark soil reflects light well. (a) False (b) True
8. 8.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
9. 9.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so light reaches the eye (c) so it can float (d) so it looks shiny
10. 10.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
11. 11.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) only short walls (d) taller walls
12. 12.True or false: vinegar is needed for the periscope. (a) False (b) True
13. 13.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) two pictures (d) a rainbow
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) a pencil (d) an empty juice carton
15. 15.⚖️ 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 object we look at (c) the angle of the mirrors
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) turmeric powder (d) a ruler
17. 17.⚖️ 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 angle of the mirrors (c) the same light (d) the same mirrors
18. 18.⚖️ 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
19. 19.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
20. 20.True or false: a ruler is needed for the periscope. (a) False (b) True
21. 21.⚖️ 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
22. 22.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
23. 23.🔭 How many mirrors does a simple periscope use?
24. 24.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
25. 25.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) the Sun (c) a friend’s toy (d) a tree
26. 26.⚖️ 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
27. 27.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) a dull brick (d) black cloth
28. 28.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) a shiny steel plate (d) dark soil
29. 29.True or false: a battery cell is not needed for the periscope. (a) False (b) True
30. 30.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 10 degrees (d) 45 degrees
31. 31.True or false: a magnet is needed for the periscope. (a) False (b) True
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) dark soil (d) black cloth
34. 34.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
35. 35.True or false: a rough wooden board reflects light poorly. (a) True (b) False
36. 36.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
40. 40.True or false: sticky tape is needed for the periscope. (a) False (b) True

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