Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 472 · 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.📘 Light bouncing off a mirror is called ___. (a) reflection (b) refraction (c) evaporation (d) magnetism
2. 2.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
3. 3.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same light (c) the same carton (d) how clear the view is
5. 5.🔭 How many mirrors does a simple periscope use?
6. 6.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) turmeric powder (d) a ruler
7. 7.⚖️ 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
8. 8.🔭 Which of these reflects light poorly? (a) a mirror (b) black cloth (c) a shiny steel plate (d) aluminium foil
9. 9.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a dull brick (d) a rough wooden board
10. 10.⚖️ 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 measure it (b) we change it (c) we keep it the same
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) a battery cell (d) sticky tape
12. 12.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
13. 13.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) a dull brick (d) still clear water
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) vinegar (d) sticky tape
15. 15.🔭 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
16. 16.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
17. 17.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
19. 19.🔭 How many times does light bounce off a mirror in a simple periscope?
20. 20.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
21. 21.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
22. 22.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) a balloon (d) a ruler
24. 24.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
25. 25.⚖️ 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 change it (c) we measure it
26. 26.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
27. 27.True or false: a pencil is not needed for the periscope. (a) False (b) True
28. 28.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a rainbow (d) a brighter view
29. 29.True or false: vinegar is not needed for the periscope. (a) True (b) False
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) two small mirrors (d) a magnet
32. 32.True or false: a ruler is not needed for the periscope. (a) False (b) True
33. 33.⚖️ 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 mirrors (c) how clear the view is
34. 34.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) two small mirrors (d) a balloon
35. 35.⚖️ 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
36. 36.True or false: a battery cell is not needed for the periscope. (a) True (b) False
37. 37.True or false: yeast is needed for the periscope. (a) True (b) False
38. 38.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) False (b) True
40. 40.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False

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