Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 534 · 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: two small mirrors is needed for the periscope. (a) False (b) True
2. 2.⚖️ 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
3. 3.True or false: a ruler is not needed for the periscope. (a) False (b) True
4. 4.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
5. 5.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) plastic safety mirrors (d) big wall mirrors
7. 7.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a dull brick (c) a shiny steel plate (d) a mirror
8. 8.⚖️ 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 same mirrors (d) how clear the view is
9. 9.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) a brighter view (d) two pictures
10. 10.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
11. 11.True or false: a rough wooden board reflects light well. (a) False (b) True
12. 12.True or false: a pencil is not needed for the periscope. (a) True (b) False
13. 13.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) still clear water (d) a rough wooden board
14. 14.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
15. 15.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) aluminium foil (d) a mirror
16. 16.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) dark soil (c) a mirror (d) still clear water
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.🧺 Which of these is not needed for the periscope? (a) yeast (b) two small mirrors (c) a ruler (d) sticky tape
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) False (b) True
21. 21.⚖️ 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 mirrors (c) the same light (d) how clear the view is
22. 22.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 10 degrees (c) 90 degrees (d) 45 degrees
23. 23.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
24. 24.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) vinegar (c) an empty juice carton (d) sticky tape
25. 25.🔭 Which of these reflects light well? (a) a dull brick (b) still clear water (c) dark soil (d) black cloth
26. 26.True or false: still clear water reflects light well. (a) True (b) False
27. 27.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
28. 28.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
29. 29.🔍 Which is the odd one out? (a) a shiny steel plate (b) dark soil (c) a mirror (d) aluminium foil
30. 30.🧺 Which of these is needed for the periscope? (a) a battery cell (b) sticky tape (c) vinegar (d) a magnet
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) False (b) True
32. 32.⚖️ 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) False (b) True
33. 33.🧺 Which of these is needed for the periscope? (a) a magnet (b) a ruler (c) vinegar (d) a battery cell
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.True or false: still clear water reflects light poorly. (a) False (b) True
36. 36.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a battery cell (c) turmeric powder (d) a magnet
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) a pencil (c) an empty juice carton (d) two small mirrors
38. 38.🔭 How many mirrors does a simple periscope use?
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a ruler (d) a balloon

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