Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 363 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) a ruler (d) sticky tape
2. 2.True or false: a balloon is needed for the periscope. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) a shiny steel plate (d) still clear water
4. 4.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
5. 5.⚖️ 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 mirrors (b) the same light (c) the angle of the mirrors (d) the object we look at
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.True or false: a magnet is needed for the periscope. (a) True (b) False
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a balloon (d) sticky tape
11. 11.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
12. 12.⚖️ 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 change it (b) we measure it (c) we keep it the same
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) sticky tape (d) turmeric powder
14. 14.True or false: a pencil is not needed for the periscope. (a) True (b) False
15. 15.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 45 degrees (d) 10 degrees
16. 16.🔭 What does a periscope let you do? (a) see germs (b) hear far sounds (c) see in the dark (d) see over a wall
17. 17.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) two small mirrors (d) turmeric powder
18. 18.True or false: a mirror reflects light poorly. (a) False (b) True
19. 19.⚖️ 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
20. 20.🔮 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
21. 21.⚖️ 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) True (b) False
22. 22.True or false: two small mirrors is needed for the periscope. (a) False (b) True
23. 23.🔭 Which of these reflects light well? (a) dark soil (b) a dull brick (c) a mirror (d) black cloth
24. 24.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a shiny steel plate (d) a rough wooden board
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
26. 26.⚖️ 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) how clear the view is (c) the same light
27. 27.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) a ruler (d) a magnet
28. 28.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) taller walls (d) only short walls
29. 29.True or false: a mirror reflects light well. (a) False (b) True
30. 30.⚖️ 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
31. 31.🔭 Which of these reflects light poorly? (a) a dull brick (b) a mirror (c) still clear water (d) a shiny steel plate
32. 32.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
33. 33.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
34. 34.🔭 Which of these reflects light poorly? (a) still clear water (b) black cloth (c) a shiny steel plate (d) a mirror
35. 35.🔭 How many times does light bounce off a mirror in a simple periscope?
36. 36.True or false: still clear water reflects light well. (a) True (b) False
37. 37.⚖️ 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 keep it the same (c) we measure it
38. 38.🧺 Which of these is needed for the periscope? (a) yeast (b) turmeric powder (c) a magnet (d) an empty juice carton
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a pencil (c) a magnet (d) an empty juice carton
40. 40.🔍 Which is the odd one out? (a) a dull brick (b) a mirror (c) a rough wooden board (d) black cloth

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