Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 674 · 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.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) two small mirrors (d) a ruler
3. 3.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) still clear water (d) a shiny steel plate
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) a magnet (d) sticky tape
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) the angle of the mirrors (c) how clear the view is
6. 6.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) sticky tape (d) a magnet
10. 10.🧺 Which of these is not needed for the periscope? (a) a pencil (b) turmeric powder (c) an empty juice carton (d) a ruler
11. 11.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a mirror (d) black cloth
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🔮 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
14. 14.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so light reaches the eye (c) so it looks shiny (d) to make it heavy
15. 15.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
16. 16.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
17. 17.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) a rough wooden board (d) aluminium foil
18. 18.🔭 How many mirrors does a simple periscope use?
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
20. 20.⚖️ 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 angle of the mirrors (c) the same mirrors
21. 21.⚖️ 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
22. 22.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) aluminium foil (d) dark soil
25. 25.⚖️ 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
26. 26.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) vinegar (d) a ruler
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.True or false: yeast is needed for the periscope. (a) False (b) True
30. 30.⚖️ 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) the angle of the mirrors (c) how clear the view is (d) the same carton
31. 31.⚖️ 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 change it (b) we measure it (c) we keep it the same
32. 32.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a shiny steel plate (c) still clear water (d) a mirror
33. 33.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
34. 34.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) an empty juice carton (d) a balloon
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) sticky tape (d) a battery cell
36. 36.📘 Light bouncing off a mirror is called ___. (a) refraction (b) magnetism (c) reflection (d) evaporation
37. 37.True or false: a battery cell is not needed for the periscope. (a) True (b) False
38. 38.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) a mirror (d) a dull brick
39. 39.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
40. 40.🔭 Which of these reflects light well? (a) a shiny steel plate (b) black cloth (c) a rough wooden board (d) a dull brick

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