Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 549 · 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.True or false: an empty juice carton is needed for the periscope. (a) True (b) False
2. 2.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
3. 3.🧺 Which of these is needed for the periscope? (a) a magnet (b) yeast (c) a battery cell (d) two small mirrors
4. 4.⚖️ 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
5. 5.True or false: dark soil reflects light poorly. (a) False (b) True
6. 6.True or false: still clear water reflects light poorly. (a) True (b) False
7. 7.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a brighter view (d) a rainbow
8. 8.⚖️ 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
9. 9.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
11. 11.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 90 degrees (d) 10 degrees
12. 12.True or false: a magnet is needed for the periscope. (a) True (b) False
13. 13.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) still clear water (c) a dull brick (d) a mirror
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) False (b) True
15. 15.🧺 Which of these is needed for the periscope? (a) a balloon (b) an empty juice carton (c) yeast (d) a magnet
16. 16.🔭 Which of these reflects light poorly? (a) still clear water (b) dark soil (c) a mirror (d) a shiny steel plate
17. 17.True or false: a shiny steel plate reflects light well. (a) False (b) True
18. 18.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) a friend’s toy (d) the Sun
19. 19.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.True or false: sticky tape is needed for the periscope. (a) False (b) True
21. 21.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) vinegar (d) an empty juice carton
23. 23.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
24. 24.⚖️ 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
25. 25.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a balloon (c) a ruler (d) two small mirrors
26. 26.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) dark soil (d) a dull brick
27. 27.⚖️ 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
28. 28.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a shiny steel plate (c) aluminium foil (d) still clear water
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same mirrors (c) the same light (d) how clear the view is
30. 30.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
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 carton (b) the same light (c) the angle of the mirrors (d) the object we look at
32. 32.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) a battery cell (d) a pencil
33. 33.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) a mirror (d) dark soil
34. 34.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
35. 35.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) a magnet (d) a ruler
36. 36.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
37. 37.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) see over a wall (d) hear far sounds
38. 38.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) upside down only (d) flipped left to right
39. 39.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) dark soil (d) a shiny steel plate
40. 40.🔭 How many times does light bounce off a mirror in a simple periscope?

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