Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 537 · 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.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) dark soil (d) a shiny steel plate
3. 3.True or false: dark soil reflects light well. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) a rough wooden board (b) a dull brick (c) still clear water (d) black cloth
5. 5.True or false: a rough wooden board reflects light poorly. (a) True (b) False
6. 6.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) a magnet (d) a pencil
7. 7.⚖️ 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
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 object we look at (b) the same light (c) the angle of the mirrors (d) the same carton
9. 9.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) two pictures (d) a brighter view
11. 11.⚖️ 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
12. 12.True or false: aluminium foil reflects light well. (a) False (b) True
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 measure it (b) we change it (c) we keep it the same
14. 14.🛟 You must never point a periscope or a mirror at ___. (a) the Sun (b) a tree (c) a friend’s toy (d) a wall
15. 15.🔭 How many times does light bounce off a mirror in a simple periscope?
16. 16.True or false: a shiny steel plate reflects light well. (a) True (b) False
17. 17.🧺 Which of these is needed for the periscope? (a) vinegar (b) a magnet (c) a balloon (d) a ruler
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a ruler (d) two small mirrors
19. 19.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) how clear the view is (c) the object we look at (d) the same carton
21. 21.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
22. 22.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.🔭 How many mirrors does a simple periscope use?
24. 24.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
25. 25.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
26. 26.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) broken glass bits (c) big wall mirrors (d) loose glass panes
27. 27.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) sticky tape (c) a ruler (d) two small mirrors
28. 28.⚖️ 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
29. 29.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) in colour (d) upside down only
30. 30.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a dull brick (d) aluminium foil
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) sticky tape (d) a pencil
33. 33.True or false: yeast is needed for the periscope. (a) True (b) False
34. 34.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) a balloon (d) two small mirrors
35. 35.True or false: a magnet is not needed for the periscope. (a) False (b) True
36. 36.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
37. 37.⚖️ 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
38. 38.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) black cloth (d) a mirror
39. 39.🧺 Which of these is not needed for the periscope? (a) a pencil (b) a ruler (c) a magnet (d) an empty juice carton
40. 40.True or false: dark soil reflects light poorly. (a) True (b) False

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