Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 802 · 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 shiny steel plate reflects light poorly. (a) True (b) False
2. 2.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
3. 3.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
4. 4.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
5. 5.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
6. 6.🔮 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
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a balloon (d) sticky tape
8. 8.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) much bigger (d) flipped left to right
9. 9.⚖️ 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
10. 10.⚖️ 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
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) sticky tape (d) yeast
12. 12.🔭 How many mirrors does a simple periscope use?
13. 13.🔭 Which of these reflects light well? (a) a dull brick (b) aluminium foil (c) a rough wooden board (d) black cloth
14. 14.True or false: black cloth reflects light poorly. (a) False (b) True
15. 15.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) a magnet (c) an empty juice carton (d) a ruler
16. 16.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) aluminium foil (d) a shiny steel plate
18. 18.🔍 Which is the odd one out? (a) aluminium foil (b) a shiny steel plate (c) a rough wooden board (d) a mirror
19. 19.⚖️ 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 measure it (b) we keep it the same (c) we change it
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 change it (c) we keep it the same
21. 21.🔭 How many times does light bounce off a mirror in a simple periscope?
22. 22.⚖️ 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) False (b) True
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) a battery cell (d) two small mirrors
24. 24.⚖️ 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 angle of the mirrors (c) the same light
25. 25.⚖️ 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) the same light (d) how clear the view is
26. 26.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) turmeric powder (d) a ruler
27. 27.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) dark soil (d) a dull brick
28. 28.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
29. 29.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) plastic safety mirrors (d) loose glass panes
30. 30.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) aluminium foil (d) a rough wooden board
31. 31.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a magnet (c) turmeric powder (d) vinegar
32. 32.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) the Sun (d) a wall
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) the same carton (b) the same light (c) the object we look at (d) the angle of the mirrors
34. 34.🧺 Which of these is needed for the periscope? (a) a pencil (b) a magnet (c) a balloon (d) vinegar
35. 35.🔍 Which is the odd one out? (a) a mirror (b) a rough wooden board (c) black cloth (d) dark soil
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
39. 39.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a mirror (d) black cloth
40. 40.⚖️ 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) False (b) True

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