Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 411 · 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 carton”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
3. 3.🔭 How many mirrors does a simple periscope use?
4. 4.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
5. 5.⚖️ 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 measure it (b) we change it (c) we keep it the same
6. 6.⚖️ 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
7. 7.⚖️ 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
8. 8.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a wall (d) a tree
9. 9.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) a battery cell (d) sticky tape
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) True (b) False
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
12. 12.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.⚖️ 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
14. 14.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
15. 15.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) big wall mirrors (d) broken glass bits
16. 16.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
17. 17.🔭 Which of these reflects light well? (a) a shiny steel plate (b) a dull brick (c) black cloth (d) a rough wooden board
18. 18.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
19. 19.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a battery cell (c) an empty juice carton (d) a pencil
21. 21.⚖️ 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 measure it (c) we change it
22. 22.True or false: a pencil is not needed for the periscope. (a) False (b) True
23. 23.⚖️ 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 measure it (c) we change it
24. 24.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) aluminium foil (d) a rough wooden board
25. 25.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it looks shiny (c) so it can float (d) so light reaches the eye
26. 26.🔭 How many times does light bounce off a mirror in a simple periscope?
27. 27.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a submarine crew (d) a pilot in a plane
28. 28.🧺 Which of these is needed for the periscope? (a) a balloon (b) turmeric powder (c) a magnet (d) a ruler
29. 29.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) hear far sounds (d) see germs
30. 30.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 180 degrees (d) 10 degrees
31. 31.⚖️ 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) the object we look at (c) the angle of the mirrors (d) how clear the view is
32. 32.True or false: yeast is needed for the periscope. (a) True (b) False
33. 33.🔮 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
34. 34.🔍 Which is the odd one out? (a) aluminium foil (b) dark soil (c) black cloth (d) a dull brick
35. 35.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) an empty juice carton (d) a balloon
37. 37.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
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) True (b) False
40. 40.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) aluminium foil (d) a mirror

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