Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 527 · 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) flipped left to right (b) in colour (c) upside down only (d) much bigger
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the object we look at (c) the angle of the mirrors (d) how clear the view is
3. 3.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) aluminium foil (d) black cloth
4. 4.True or false: a ruler is not needed for the periscope. (a) True (b) False
5. 5.True or false: a magnet is not needed for the periscope. (a) False (b) True
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) yeast (d) sticky tape
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.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) a brighter view (d) two pictures
9. 9.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) sticky tape (c) yeast (d) vinegar
10. 10.True or false: a mirror reflects light well. (a) False (b) True
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a balloon (c) a pencil (d) sticky tape
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
14. 14.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a dull brick (d) a shiny steel plate
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a pencil (d) vinegar
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a rough wooden board (d) aluminium foil
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) a ruler (d) an empty juice carton
19. 19.⚖️ 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 change it (b) we measure it (c) we keep it the same
20. 20.True or false: vinegar is needed for the periscope. (a) False (b) True
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same mirrors (c) the angle of the mirrors (d) the same light
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) a magnet (d) an empty juice carton
23. 23.🔮 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
24. 24.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) an empty juice carton (d) a magnet
25. 25.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
26. 26.🔭 Which of these reflects light poorly? (a) a mirror (b) black cloth (c) aluminium foil (d) a shiny steel plate
27. 27.⚖️ 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
28. 28.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 180 degrees (d) 45 degrees
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 is the odd one out? (a) a rough wooden board (b) black cloth (c) a mirror (d) dark soil
31. 31.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.True or false: black cloth reflects light poorly. (a) False (b) True
34. 34.True or false: turmeric powder is needed for the periscope. (a) False (b) True
35. 35.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a pilot in a plane (c) a farmer (d) a baker
36. 36.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) still clear water (d) a dull brick
38. 38.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) aluminium foil (d) a rough wooden board
39. 39.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) a ruler (d) a magnet
40. 40.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well

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