Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 518 · 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) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
2. 2.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
3. 3.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
4. 4.📘 Light bouncing off a mirror is called ___. (a) reflection (b) evaporation (c) magnetism (d) refraction
5. 5.True or false: a dull brick reflects light well. (a) True (b) False
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 keep it the same (b) we measure it (c) we change it
7. 7.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) an empty juice carton (d) two small mirrors
9. 9.True or false: black cloth reflects light poorly. (a) False (b) True
10. 10.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) broken glass bits (c) plastic safety mirrors (d) big wall mirrors
11. 11.⚖️ 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 object we look at (c) the angle of the mirrors (d) the same mirrors
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.🔭 Which of these reflects light well? (a) a dull brick (b) a shiny steel plate (c) black cloth (d) dark soil
14. 14.True or false: two small mirrors is needed for the periscope. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) black cloth (d) still clear water
16. 16.🔭 Which of these reflects light well? (a) black cloth (b) still clear water (c) dark soil (d) a rough wooden board
17. 17.🔭 Which of these reflects light poorly? (a) dark soil (b) a mirror (c) a shiny steel plate (d) still clear water
18. 18.🧺 Which of these is not needed for the periscope? (a) a ruler (b) two small mirrors (c) vinegar (d) a pencil
19. 19.🔭 Which of these reflects light poorly? (a) a mirror (b) a rough wooden board (c) a shiny steel plate (d) aluminium foil
20. 20.True or false: still clear water reflects light poorly. (a) False (b) True
21. 21.⚖️ 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 change it (b) we keep it the same (c) we measure it
22. 22.🔭 How many mirrors does a simple periscope use?
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a rough wooden board (d) a mirror
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the angle of the mirrors (c) the object we look at (d) the same light
26. 26.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see germs (d) see in the dark
27. 27.True or false: a dull brick reflects light poorly. (a) True (b) False
28. 28.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a mirror
29. 29.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 180 degrees (d) 10 degrees
30. 30.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) still clear water (d) a mirror
31. 31.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) only short walls (d) nothing at all
32. 32.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a dull brick (d) a shiny steel plate
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a pencil (c) a ruler (d) a balloon
34. 34.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
35. 35.🔭 How many times does light bounce off a mirror in a simple periscope?
36. 36.True or false: yeast is not needed for the periscope. (a) False (b) True
37. 37.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
38. 38.True or false: a mirror reflects light poorly. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) black cloth (b) a rough wooden board (c) a dull brick (d) a shiny steel plate
40. 40.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly

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