Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 86 · 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) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) still clear water (d) a dull brick
5. 5.🔭 Does a rough wooden board 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? Which of these is what we measure? (a) the object we look at (b) the same light (c) the same carton (d) how clear the view is
7. 7.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
8. 8.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) evaporation (c) refraction (d) reflection
9. 9.⚖️ 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) False (b) True
10. 10.🔍 Which is the odd one out? (a) a shiny steel plate (b) aluminium foil (c) dark soil (d) still clear water
11. 11.⚖️ 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
12. 12.🔍 Which is the odd one out? (a) aluminium foil (b) black cloth (c) a shiny steel plate (d) a mirror
13. 13.True or false: a pencil is not needed for the periscope. (a) True (b) False
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) an empty juice carton (c) vinegar (d) a pencil
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a balloon (c) sticky tape (d) a pencil
16. 16.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) a brighter view (d) two pictures
17. 17.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
18. 18.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
19. 19.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
20. 20.🔭 Which of these reflects light poorly? (a) a dull brick (b) a mirror (c) a shiny steel plate (d) aluminium foil
21. 21.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) yeast (c) two small mirrors (d) sticky tape
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
25. 25.True or false: yeast is needed for the periscope. (a) False (b) True
26. 26.🔭 Which of these reflects light well? (a) dark soil (b) aluminium foil (c) a dull brick (d) a rough wooden board
27. 27.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) nothing at all (c) only short walls (d) the ground
28. 28.True or false: still clear water reflects light poorly. (a) True (b) False
29. 29.⚖️ 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 change it (c) we measure it
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the periscope? (a) yeast (b) a pencil (c) a ruler (d) two small mirrors
32. 32.True or false: a magnet is not needed for the periscope. (a) False (b) True
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
35. 35.🔭 What does a periscope let you do? (a) see in the dark (b) see germs (c) see over a wall (d) hear far sounds
36. 36.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
37. 37.True or false: vinegar is needed for the periscope. (a) False (b) True
38. 38.🛟 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
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) False (b) True
40. 40.True or false: a magnet is needed for the periscope. (a) True (b) False

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