Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 652 · 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 same mirrors”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a shiny steel plate (d) aluminium foil
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) a ruler (c) a pencil (d) sticky tape
5. 5.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
6. 6.🔍 Which is the odd one out? (a) a shiny steel plate (b) dark soil (c) a dull brick (d) a rough wooden board
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) turmeric powder (d) sticky tape
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) an empty juice carton (d) yeast
9. 9.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
10. 10.⚖️ 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 mirrors (d) how clear the view is
11. 11.True or false: a mirror reflects light poorly. (a) True (b) False
12. 12.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) only short walls (c) the ground (d) nothing at all
13. 13.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a farmer (d) a baker
14. 14.True or false: black cloth reflects light well. (a) False (b) True
15. 15.True or false: a shiny steel plate reflects light well. (a) False (b) True
16. 16.⚖️ 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
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) dark soil (d) still clear water
19. 19.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) two small mirrors (d) a battery cell
20. 20.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.⚖️ 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
23. 23.⚖️ 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
24. 24.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a rough wooden board
25. 25.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) two small mirrors (d) vinegar
26. 26.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
27. 27.True or false: a rough wooden board reflects light well. (a) True (b) False
28. 28.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
29. 29.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.🔭 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
31. 31.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.True or false: black cloth reflects light poorly. (a) False (b) True
33. 33.⚖️ 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 measure it (c) we keep it the same
34. 34.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) turmeric powder (d) a pencil
36. 36.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.True or false: a battery cell is needed for the periscope. (a) True (b) False
38. 38.True or false: a dull brick reflects light poorly. (a) False (b) True
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) an empty juice carton (c) sticky tape (d) a ruler
40. 40.True or false: a pencil is not needed for the periscope. (a) True (b) False

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