Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 241 · 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.⚖️ 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 keep it the same (b) we change it (c) we measure it
2. 2.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a pencil (d) a magnet
3. 3.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
4. 4.True or false: black cloth reflects light well. (a) False (b) True
5. 5.🔭 How many times does light bounce off a mirror in a simple periscope?
6. 6.🧺 Which of these is needed for the periscope? (a) a battery cell (b) yeast (c) turmeric powder (d) two small mirrors
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
8. 8.True or false: dark soil reflects light poorly. (a) False (b) True
9. 9.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
10. 10.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) loose glass panes (c) plastic safety mirrors (d) broken glass bits
11. 11.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
12. 12.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
13. 13.True or false: two small mirrors is needed for the periscope. (a) True (b) False
14. 14.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a submarine crew (c) a pilot in a plane (d) a baker
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a pencil (d) a battery cell
16. 16.⚖️ 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 change it (b) we keep it the same (c) we measure it
17. 17.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) dark soil (d) a shiny steel plate
19. 19.⚖️ 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) the object we look at (c) how clear the view is
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) two small mirrors (d) yeast
22. 22.True or false: a dull brick reflects light poorly. (a) False (b) True
23. 23.True or false: vinegar is needed for the periscope. (a) True (b) False
24. 24.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
25. 25.True or false: a battery cell is needed for the periscope. (a) True (b) False
26. 26.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) still clear water (d) black cloth
27. 27.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.True or false: yeast is not needed for the periscope. (a) False (b) True
29. 29.🔭 Which of these reflects light well? (a) black cloth (b) aluminium foil (c) dark soil (d) a rough wooden board
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
32. 32.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) flipped left to right (d) upside down only
33. 33.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) two small mirrors (c) a magnet (d) an empty juice carton
34. 34.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) a balloon (d) two small mirrors
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the object we look at (b) the same carton (c) the same light (d) how clear the view is
36. 36.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
37. 37.🔭 How many mirrors does a simple periscope use?
38. 38.🧺 Which of these is needed for the periscope? (a) a magnet (b) yeast (c) a pencil (d) vinegar
39. 39.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) only darkness (d) a rainbow
40. 40.🔍 Which is the odd one out? (a) a dull brick (b) still clear water (c) aluminium foil (d) a mirror

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