Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 679 · 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.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
2. 2.True or false: two small mirrors is needed for the periscope. (a) True (b) False
3. 3.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) a brighter view (d) two pictures
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.⚖️ 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
7. 7.🔭 Which of these reflects light poorly? (a) black cloth (b) a mirror (c) a shiny steel plate (d) still clear water
8. 8.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 45 degrees (d) 10 degrees
9. 9.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
10. 10.True or false: turmeric powder is needed for the periscope. (a) True (b) False
11. 11.True or false: aluminium foil reflects light poorly. (a) False (b) True
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 keep it the same (b) we measure it (c) we change it
13. 13.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) aluminium foil (d) black cloth
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
15. 15.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a ruler (d) a magnet
17. 17.🔍 Which is the odd one out? (a) a shiny steel plate (b) a dull brick (c) aluminium foil (d) a mirror
18. 18.True or false: a shiny steel plate reflects light well. (a) True (b) False
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
20. 20.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) upside down only (c) much bigger (d) flipped left to right
21. 21.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
22. 22.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a shiny steel plate (d) a dull brick
23. 23.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) dark soil (d) black cloth
24. 24.🔭 How many times does light bounce off a mirror in a simple periscope?
25. 25.True or false: a mirror reflects light well. (a) False (b) True
26. 26.True or false: a rough wooden board reflects light well. (a) False (b) True
27. 27.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) two small mirrors (d) a magnet
28. 28.🧺 Which of these is needed for the periscope? (a) yeast (b) a battery cell (c) vinegar (d) two small mirrors
29. 29.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so light reaches the eye (c) to make it heavy (d) so it looks shiny
30. 30.True or false: yeast is needed for the periscope. (a) True (b) False
31. 31.True or false: dark soil reflects light well. (a) True (b) False
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) turmeric powder (d) a ruler
33. 33.🧺 Which of these is not needed for the periscope? (a) a pencil (b) vinegar (c) a ruler (d) an empty juice carton
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a battery cell (c) an empty juice carton (d) a pencil
35. 35.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.True or false: a ruler is not needed for the periscope. (a) True (b) False
37. 37.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) aluminium foil (d) a rough wooden board
38. 38.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) aluminium foil (d) black cloth
39. 39.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
40. 40.🔮 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

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