Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 730 · 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.True or false: black cloth reflects light poorly. (a) False (b) True
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) two small mirrors (c) an empty juice carton (d) a pencil
3. 3.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
4. 4.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
5. 5.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) dark soil (d) still clear water
7. 7.True or false: a battery cell is needed for the periscope. (a) False (b) True
8. 8.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
9. 9.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) two small mirrors (c) a pencil (d) sticky tape
11. 11.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a battery cell (c) two small mirrors (d) a magnet
12. 12.⚖️ 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
13. 13.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) black cloth (d) a mirror
14. 14.True or false: a magnet is needed for the periscope. (a) False (b) True
15. 15.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.⚖️ 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 change it (c) we measure it
17. 17.⚖️ 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
18. 18.🧺 Which of these is needed for the periscope? (a) vinegar (b) an empty juice carton (c) turmeric powder (d) a balloon
19. 19.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
20. 20.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
21. 21.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
22. 22.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a wall (c) a tree (d) a friend’s toy
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) a pencil (d) a ruler
24. 24.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.⚖️ 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 angle of the mirrors (c) the object we look at (d) how clear the view is
26. 26.True or false: a mirror reflects light poorly. (a) False (b) True
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) yeast (c) an empty juice carton (d) sticky tape
29. 29.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.🔭 Who uses a periscope to look above the water? (a) a baker (b) a farmer (c) a pilot in a plane (d) a submarine crew
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) True (b) False
32. 32.⚖️ 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) True (b) False
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 45 degrees (d) 90 degrees
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) vinegar (d) an empty juice carton
36. 36.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) aluminium foil (d) black cloth
37. 37.True or false: dark soil reflects light poorly. (a) True (b) False
38. 38.⚖️ 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
39. 39.🔭 How many mirrors does a simple periscope use?
40. 40.🧺 Which of these is not needed for the periscope? (a) a pencil (b) an empty juice carton (c) yeast (d) a ruler

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