Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 415 · 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? What do we do with “the angle of the mirrors”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a balloon (c) a pencil (d) sticky tape
3. 3.⚖️ 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
4. 4.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) an empty juice carton (d) a battery cell
5. 5.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) a pencil (d) yeast
6. 6.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
7. 7.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) only short walls (d) the ground
8. 8.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
9. 9.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same mirrors (b) how clear the view is (c) the angle of the mirrors (d) the same light
11. 11.⚖️ 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 mirrors (c) the angle of the mirrors
12. 12.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) an empty juice carton (d) a magnet
13. 13.🔍 Which is the odd one out? (a) black cloth (b) still clear water (c) a rough wooden board (d) a dull brick
14. 14.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
15. 15.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) to make it heavy (c) so light reaches the eye (d) so it can float
16. 16.⚖️ 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) False (b) True
17. 17.True or false: two small mirrors is needed for the periscope. (a) True (b) False
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) turmeric powder (d) an empty juice carton
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.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
21. 21.⚖️ 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) how clear the view is (c) the same light (d) the same carton
22. 22.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.True or false: a shiny steel plate reflects light well. (a) True (b) False
24. 24.⚖️ 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 change it (c) we keep it the same
25. 25.🔭 Which of these reflects light poorly? (a) a mirror (b) a dull brick (c) still clear water (d) a shiny steel plate
26. 26.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) a magnet (d) two small mirrors
27. 27.🔭 How many times does light bounce off a mirror in a simple periscope?
28. 28.🧺 Which of these is needed for the periscope? (a) yeast (b) sticky tape (c) vinegar (d) a battery cell
29. 29.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
30. 30.🧺 Which of these is needed for the periscope? (a) a pencil (b) vinegar (c) a balloon (d) a magnet
31. 31.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a pencil (c) two small mirrors (d) a balloon
32. 32.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
33. 33.🔭 Which of these reflects light poorly? (a) a mirror (b) black cloth (c) still clear water (d) aluminium foil
34. 34.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.True or false: aluminium foil reflects light well. (a) True (b) False
36. 36.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) still clear water (d) a mirror
37. 37.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a pilot in a plane (c) a baker (d) a farmer
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
39. 39.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) plastic safety mirrors (d) broken glass bits
40. 40.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a mirror (c) aluminium foil (d) still clear water

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