Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 480 · 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.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so it can float (c) so it looks shiny (d) so light reaches the eye
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a pencil (d) yeast
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 mirrors (b) the same carton (c) the object we look at (d) the angle of the mirrors
4. 4.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a submarine crew (d) a baker
5. 5.🧺 Which of these is needed for the periscope? (a) a pencil (b) a magnet (c) a battery cell (d) a balloon
6. 6.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 90 degrees (d) 180 degrees
7. 7.⚖️ 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 measure it (b) we keep it the same (c) we change it
8. 8.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
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 measure it (c) we keep it the same
10. 10.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a rough wooden board (d) a shiny steel plate
11. 11.True or false: vinegar is not needed for the periscope. (a) False (b) True
12. 12.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
13. 13.True or false: yeast is needed for the periscope. (a) False (b) True
14. 14.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a shiny steel plate (d) a dull brick
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) vinegar (d) an empty juice carton
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) sticky tape (d) a magnet
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) taller walls (d) the ground
18. 18.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) how clear the view is (c) the angle of the mirrors (d) the object we look at
20. 20.🧺 Which of these is needed for the periscope? (a) a magnet (b) vinegar (c) two small mirrors (d) a balloon
21. 21.True or false: still clear water reflects light poorly. (a) True (b) False
22. 22.⚖️ 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) how clear the view is (c) the same mirrors
23. 23.📘 Light bouncing off a mirror is called ___. (a) refraction (b) reflection (c) evaporation (d) magnetism
24. 24.True or false: sticky tape is not needed for the periscope. (a) True (b) False
25. 25.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.True or false: two small mirrors is needed for the periscope. (a) False (b) True
27. 27.🧺 Which of these is not needed for the periscope? (a) yeast (b) two small mirrors (c) an empty juice carton (d) a ruler
28. 28.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
29. 29.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) sticky tape (d) a battery cell
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
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 keep it the same (c) we measure it
34. 34.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see germs (d) see in the dark
35. 35.⚖️ 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
36. 36.True or false: still clear water reflects light well. (a) False (b) True
37. 37.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
38. 38.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
39. 39.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) vinegar (d) a pencil
40. 40.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) a rough wooden board (d) aluminium foil

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