Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 337 · 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.🧺 Which of these is needed for the periscope? (a) yeast (b) a balloon (c) vinegar (d) an empty juice carton
2. 2.🔭 How many mirrors does a simple periscope use?
3. 3.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
4. 4.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) broken glass bits (d) big wall mirrors
5. 5.True or false: aluminium foil reflects light well. (a) True (b) False
6. 6.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🔭 Which of these reflects light well? (a) a rough wooden board (b) a shiny steel plate (c) a dull brick (d) black cloth
8. 8.⚖️ 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) how clear the view is (c) the same mirrors (d) the same carton
9. 9.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a mirror
10. 10.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) two pictures (d) a rainbow
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the angle of the mirrors (c) the same carton (d) the same mirrors
12. 12.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a wall (c) a tree (d) a friend’s toy
13. 13.⚖️ 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 keep it the same (b) we measure it (c) we change it
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a magnet (d) a ruler
15. 15.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) a shiny steel plate (d) a mirror
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) a pencil (d) a ruler
17. 17.True or false: dark soil reflects light poorly. (a) True (b) False
18. 18.⚖️ 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
19. 19.⚖️ 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
20. 20.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) upside down only (d) much bigger
21. 21.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
22. 22.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
23. 23.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) an empty juice carton (d) two small mirrors
25. 25.True or false: a dull brick reflects light well. (a) False (b) True
26. 26.⚖️ 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 change it (b) we keep it the same (c) we measure it
27. 27.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.🔭 How many times does light bounce off a mirror in a simple periscope?
29. 29.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) yeast (d) a ruler
30. 30.🔭 What does a periscope let you do? (a) hear far sounds (b) see over a wall (c) see in the dark (d) see germs
31. 31.True or false: still clear water reflects light well. (a) False (b) True
32. 32.True or false: a mirror reflects light poorly. (a) True (b) False
33. 33.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
34. 34.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
36. 36.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
37. 37.🧺 Which of these is not needed for the periscope? (a) a ruler (b) yeast (c) an empty juice carton (d) two small mirrors
38. 38.⚖️ 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 change it (c) we measure it
39. 39.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
40. 40.⚖️ 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 measure it (b) we change it (c) we keep it the same

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