Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 752 · 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.⚖️ 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 same mirrors (c) the same light (d) the same carton
2. 2.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
3. 3.🔭 Which of these reflects light well? (a) a mirror (b) black cloth (c) a rough wooden board (d) a dull brick
4. 4.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) flipped left to right (c) much bigger (d) upside down only
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.⚖️ 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) True (b) False
7. 7.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) a pencil (c) an empty juice carton (d) two small mirrors
8. 8.True or false: a shiny steel plate reflects light well. (a) True (b) False
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same carton (c) the angle of the mirrors (d) the same mirrors
10. 10.⚖️ 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 same mirrors
11. 11.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
12. 12.True or false: dark soil reflects light poorly. (a) True (b) False
13. 13.⚖️ 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
14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) broken glass bits (d) loose glass panes
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) an empty juice carton (d) sticky tape
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a magnet (d) a pencil
18. 18.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) a friend’s toy (c) a wall (d) the Sun
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
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) so it can float (d) to make it heavy
21. 21.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.⚖️ 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 change it (b) we keep it the same (c) we measure it
23. 23.True or false: a balloon is not needed for the periscope. (a) True (b) False
24. 24.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) aluminium foil (d) dark soil
27. 27.🔭 How many times does light bounce off a mirror in a simple periscope?
28. 28.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) a balloon (d) an empty juice carton
29. 29.True or false: a rough wooden board reflects light poorly. (a) True (b) False
30. 30.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
31. 31.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) an empty juice carton (d) yeast
33. 33.🔮 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
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) sticky tape (d) a battery cell
35. 35.🔭 Which of these reflects light poorly? (a) still clear water (b) black cloth (c) aluminium foil (d) a mirror
36. 36.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
38. 38.⚖️ 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
39. 39.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) aluminium foil (c) a shiny steel plate (d) still clear water
40. 40.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly

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