Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 341 · 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 yeast for the periscope? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) vinegar (c) an empty juice carton (d) a ruler
3. 3.⚖️ 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 carton (b) the same light (c) the same mirrors (d) the angle of the mirrors
4. 4.🔭 How many mirrors does a simple periscope use?
5. 5.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 90 degrees (d) 180 degrees
6. 6.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
7. 7.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) a pencil (d) a ruler
10. 10.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
11. 11.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) a dull brick (d) a mirror
12. 12.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) dark soil
15. 15.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) an empty juice carton (d) a balloon
17. 17.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
18. 18.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) dark soil (d) a mirror
19. 19.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
23. 23.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
24. 24.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) vinegar (d) a ruler
26. 26.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) flipped left to right (d) much bigger
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
28. 28.True or false: black cloth reflects light poorly. (a) False (b) True
29. 29.True or false: a magnet is not needed for the periscope. (a) False (b) True
30. 30.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) plastic safety mirrors (d) loose glass panes
31. 31.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
33. 33.🔭 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
34. 34.True or false: a shiny steel plate reflects light well. (a) True (b) False
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) a battery cell (d) an empty juice carton
37. 37.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) to make it heavy (c) so it can float (d) so light reaches the eye
38. 38.🧺 Which of these is needed for the periscope? (a) a magnet (b) a battery cell (c) two small mirrors (d) vinegar
39. 39.🔭 How many times does light bounce off a mirror in a simple periscope?
40. 40.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up

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