Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 195 · 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.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) two pictures (d) a rainbow
2. 2.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
3. 3.⚖️ 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 object we look at (c) how clear the view is (d) the same carton
4. 4.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a magnet (c) an empty juice carton (d) sticky tape
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the object we look at (c) the angle of the mirrors
6. 6.🧺 Which of these is needed for the periscope? (a) a balloon (b) a battery cell (c) yeast (d) an empty juice carton
7. 7.True or false: a pencil is not needed for the periscope. (a) False (b) True
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) an empty juice carton (d) two small mirrors
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) a battery cell (d) a ruler
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) aluminium foil (d) a rough wooden board
13. 13.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) still clear water (d) dark soil
14. 14.True or false: a ruler is needed for the periscope. (a) False (b) True
15. 15.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) big wall mirrors (d) loose glass panes
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) sticky tape (c) a pencil (d) a ruler
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) yeast (d) two small mirrors
18. 18.True or false: still clear water reflects light poorly. (a) True (b) False
19. 19.⚖️ 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
20. 20.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
21. 21.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a submarine crew (c) a baker (d) a pilot in a plane
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🔭 How many mirrors does a simple periscope use?
24. 24.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) dark soil (d) a rough wooden board
25. 25.🔭 What does a periscope let you do? (a) see germs (b) hear far sounds (c) see in the dark (d) see over a wall
26. 26.True or false: a shiny steel plate reflects light well. (a) False (b) True
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a battery cell (c) sticky tape (d) an empty juice carton
28. 28.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) aluminium foil (d) still clear water
29. 29.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) black cloth (d) aluminium foil
30. 30.⚖️ 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
31. 31.🔭 How many times does light bounce off a mirror in a simple periscope?
32. 32.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same carton (c) the same mirrors (d) the angle of the mirrors
34. 34.True or false: sticky tape is needed for the periscope. (a) False (b) True
35. 35.True or false: dark soil reflects light poorly. (a) False (b) True
36. 36.True or false: aluminium foil reflects light poorly. (a) False (b) True
37. 37.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) a shiny steel plate (d) a mirror
38. 38.True or false: black cloth reflects light poorly. (a) False (b) True
39. 39.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a shiny steel plate (c) still clear water (d) a rough wooden board
40. 40.True or false: dark soil reflects light well. (a) False (b) True

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