Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 54 · 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: a ruler is not needed for the periscope. (a) False (b) True
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a balloon (c) two small mirrors (d) an empty juice carton
3. 3.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
4. 4.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) still clear water (d) a dull brick
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) the same light (c) the object we look at (d) the same mirrors
6. 6.🧺 Which of these is needed for the periscope? (a) a balloon (b) a battery cell (c) turmeric powder (d) an empty juice carton
7. 7.⚖️ 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) True (b) False
8. 8.⚖️ 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
9. 9.⚖️ 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
10. 10.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) a tree (d) the Sun
11. 11.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a mirror (d) a dull brick
12. 12.True or false: dark soil reflects light poorly. (a) True (b) False
13. 13.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) black cloth (d) still clear water
14. 14.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.True or false: black cloth reflects light well. (a) False (b) True
16. 16.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) sticky tape (d) vinegar
17. 17.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) dark soil (d) a shiny steel plate
18. 18.🔮 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
19. 19.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.True or false: still clear water reflects light poorly. (a) False (b) True
21. 21.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a farmer (d) a pilot in a plane
22. 22.🔍 Which is the odd one out? (a) a shiny steel plate (b) black cloth (c) a dull brick (d) dark soil
23. 23.🔭 Which of these reflects light well? (a) a shiny steel plate (b) black cloth (c) dark soil (d) a rough wooden board
24. 24.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.🔭 Which of these reflects light well? (a) aluminium foil (b) dark soil (c) a rough wooden board (d) black cloth
26. 26.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
27. 27.⚖️ 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) False (b) True
28. 28.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) how clear the view is (c) the angle of the mirrors
30. 30.True or false: a magnet is not needed for the periscope. (a) True (b) False
31. 31.True or false: a rough wooden board reflects light poorly. (a) True (b) False
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) yeast (d) an empty juice carton
33. 33.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 180 degrees (c) 45 degrees (d) 90 degrees
34. 34.🧺 Which of these is needed for the periscope? (a) yeast (b) a magnet (c) two small mirrors (d) a balloon
35. 35.🔭 How many mirrors does a simple periscope use?
36. 36.🔭 Which of these reflects light well? (a) a mirror (b) black cloth (c) a rough wooden board (d) dark soil
37. 37.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) sticky tape (d) a battery cell
40. 40.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) reflection (d) refraction

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