Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 905 · 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.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) in colour (d) much bigger
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 keep it the same (b) we change it (c) we measure it
3. 3.True or false: a ruler is not needed for the periscope. (a) True (b) False
4. 4.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) a rainbow (c) two pictures (d) only darkness
5. 5.🧺 Which of these is needed for the periscope? (a) a magnet (b) yeast (c) two small mirrors (d) vinegar
6. 6.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) big wall mirrors (d) plastic safety mirrors
7. 7.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a shiny steel plate (d) black cloth
8. 8.⚖️ 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) True (b) False
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) True (b) False
11. 11.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
12. 12.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) the ground (d) only short walls
13. 13.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) hear far sounds (d) see germs
14. 14.🧺 Which of these is needed for the periscope? (a) a ruler (b) yeast (c) a balloon (d) a battery cell
15. 15.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
16. 16.⚖️ 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
17. 17.⚖️ 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
18. 18.True or false: turmeric powder is needed for the periscope. (a) True (b) False
19. 19.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) sticky tape (d) a battery cell
21. 21.⚖️ 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 keep it the same (c) we change it
22. 22.⚖️ 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 change it (c) we measure it
23. 23.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) a rough wooden board (d) a mirror
26. 26.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a mirror (d) a dull brick
27. 27.🔭 How many mirrors does a simple periscope use?
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) the object we look at (c) how clear the view is
29. 29.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) black cloth (d) aluminium foil
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a magnet (d) a ruler
31. 31.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.🔭 Which of these reflects light well? (a) still clear water (b) a rough wooden board (c) black cloth (d) dark soil
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the same light (c) how clear the view is (d) the same mirrors
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) sticky tape (d) an empty juice carton
36. 36.⚖️ 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 same carton (c) the angle of the mirrors
37. 37.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) a shiny steel plate (d) still clear water
38. 38.⚖️ 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
39. 39.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) turmeric powder (d) sticky tape

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