Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 106 · 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 change it (b) we measure it (c) we keep it the same
2. 2.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) two small mirrors (d) vinegar
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) sticky tape (d) a balloon
4. 4.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) taller walls (d) only short walls
5. 5.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) a rainbow (d) two pictures
6. 6.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a rough wooden board (d) still clear water
7. 7.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the periscope? (a) a ruler (b) a magnet (c) a balloon (d) a battery cell
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a battery cell (c) two small mirrors (d) a ruler
11. 11.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) broken glass bits (d) big wall mirrors
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a shiny steel plate (d) a rough wooden board
14. 14.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
15. 15.🔭 Which of these reflects light poorly? (a) a mirror (b) still clear water (c) a shiny steel plate (d) a rough wooden board
16. 16.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) dark soil (d) still clear water
17. 17.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) vinegar (d) a ruler
20. 20.🔭 How many times does light bounce off a mirror in a simple periscope?
21. 21.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
22. 22.⚖️ 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
23. 23.🔭 How many mirrors does a simple periscope use?
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 mirrors
25. 25.⚖️ 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 keep it the same (b) we measure it (c) we change it
26. 26.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
27. 27.⚖️ 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
28. 28.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) flipped left to right (d) upside down only
29. 29.True or false: a pencil is needed for the periscope. (a) False (b) True
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) sticky tape (c) a pencil (d) an empty juice carton
31. 31.⚖️ 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 light (b) the same carton (c) the angle of the mirrors (d) the object we look at
32. 32.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
33. 33.True or false: yeast is needed for the periscope. (a) True (b) False
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a magnet (d) an empty juice carton
36. 36.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
37. 37.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a wall (c) a friend’s toy (d) a tree
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
39. 39.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
40. 40.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up

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