Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 651 · 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.⚖️ 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 light (b) the object we look at (c) how clear the view is (d) the angle of the mirrors
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) two small mirrors (d) an empty juice carton
4. 4.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.True or false: a mirror reflects light poorly. (a) True (b) False
7. 7.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) broken glass bits (d) loose glass panes
8. 8.True or false: turmeric powder is needed for the periscope. (a) False (b) True
9. 9.True or false: a rough wooden board reflects light well. (a) False (b) True
10. 10.⚖️ 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
11. 11.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) black cloth (d) aluminium foil
12. 12.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) dark soil (d) still clear water
13. 13.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
14. 14.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) taller walls (c) nothing at all (d) the ground
15. 15.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a mirror (d) dark soil
16. 16.⚖️ 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) how clear the view is (d) the same mirrors
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.True or false: a mirror reflects light well. (a) False (b) True
19. 19.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
20. 20.⚖️ 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) False (b) True
21. 21.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
22. 22.🔮 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
23. 23.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) a pencil (d) a magnet
24. 24.True or false: a dull brick reflects light poorly. (a) True (b) False
25. 25.🔭 Which of these reflects light poorly? (a) aluminium foil (b) black cloth (c) a shiny steel plate (d) still clear water
26. 26.🧺 Which of these is not needed for the periscope? (a) yeast (b) two small mirrors (c) an empty juice carton (d) a pencil
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
28. 28.⚖️ 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 change it (c) we measure it
29. 29.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a battery cell (c) two small mirrors (d) an empty juice carton
30. 30.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a pencil (c) two small mirrors (d) sticky tape
31. 31.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) a balloon (d) sticky tape
32. 32.🔭 Who uses a periscope to look above the water? (a) a baker (b) a submarine crew (c) a farmer (d) a pilot in a plane
33. 33.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a shiny steel plate (d) a rough wooden board
34. 34.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) reflection (d) magnetism
35. 35.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
37. 37.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
38. 38.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a rough wooden board (d) a dull brick
39. 39.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a mirror (d) a dull brick
40. 40.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a rough wooden board (d) a shiny steel plate

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