Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 67 · 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.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
2. 2.🧺 Which of these is needed for the periscope? (a) a magnet (b) turmeric powder (c) a balloon (d) a pencil
3. 3.True or false: black cloth reflects light well. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) black cloth (d) dark soil
5. 5.True or false: a mirror reflects light well. (a) False (b) True
6. 6.True or false: a mirror reflects light poorly. (a) True (b) False
7. 7.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) sticky tape (c) a magnet (d) a balloon
8. 8.⚖️ 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 measure it (c) we keep it the same
9. 9.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
10. 10.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) a ruler (d) a magnet
11. 11.🔭 Which of these reflects light well? (a) aluminium foil (b) dark soil (c) a rough wooden board (d) black cloth
12. 12.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
13. 13.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a ruler (c) a pencil (d) a balloon
14. 14.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
15. 15.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) refraction (c) evaporation (d) reflection
16. 16.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a magnet (d) a ruler
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is what we measure. (a) False (b) True
18. 18.⚖️ 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
19. 19.🔮 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
20. 20.⚖️ 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 angle of the mirrors (c) the object we look at (d) how clear the view is
21. 21.True or false: aluminium foil 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) an empty juice carton (c) a battery cell (d) a pencil
23. 23.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) a mirror (c) dark soil (d) still clear water
24. 24.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
25. 25.True or false: black cloth reflects light poorly. (a) False (b) True
26. 26.🔭 Which of these reflects light well? (a) a mirror (b) a rough wooden board (c) a dull brick (d) dark soil
27. 27.True or false: a dull brick reflects light well. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) dark soil (d) still clear water
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.⚖️ 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 keep it the same (c) we measure it
31. 31.🧺 Which of these is not needed for the periscope? (a) yeast (b) two small mirrors (c) sticky tape (d) an empty juice carton
32. 32.⚖️ 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 measure it (b) we change it (c) we keep it the same
33. 33.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a wall (d) a friend’s toy
34. 34.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
35. 35.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 45 degrees (c) 180 degrees (d) 90 degrees
36. 36.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) a battery cell (d) a ruler
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) sticky tape (c) turmeric powder (d) a ruler
38. 38.True or false: sticky tape is needed for the periscope. (a) False (b) True
39. 39.🔭 How many times does light bounce off a mirror in a simple periscope?
40. 40.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a ruler (d) vinegar

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