Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 29 · 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 a magnet for the periscope? (a) needed (b) not needed
2. 2.⚖️ 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) how clear the view is (d) the angle of the mirrors
3. 3.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a mirror (d) dark soil
4. 4.🔭 Which of these reflects light well? (a) aluminium foil (b) black cloth (c) a rough wooden board (d) dark soil
5. 5.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) aluminium foil (d) a rough wooden board
6. 6.True or false: sticky tape is not needed for the periscope. (a) True (b) False
7. 7.⚖️ 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 measure it (c) we keep it the same
8. 8.🧺 Which of these is not needed for the periscope? (a) a battery cell (b) two small mirrors (c) a ruler (d) sticky tape
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True
10. 10.🔭 Which of these reflects light well? (a) a rough wooden board (b) dark soil (c) a shiny steel plate (d) black cloth
11. 11.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark
12. 12.📘 Light bouncing off a mirror is called ___. (a) refraction (b) evaporation (c) magnetism (d) reflection
13. 13.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
14. 14.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) vinegar (d) two small mirrors
16. 16.True or false: a battery cell is needed for the periscope. (a) True (b) False
17. 17.🔭 How many times does light bounce off a mirror in a simple periscope?
18. 18.⚖️ 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
19. 19.⚖️ 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
20. 20.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) upside down only (d) in colour
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) True (b) False
22. 22.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the periscope? (a) vinegar (b) a pencil (c) a magnet (d) yeast
25. 25.🔭 At what angle are the mirrors set in a simple periscope? (a) 10 degrees (b) 90 degrees (c) 45 degrees (d) 180 degrees
26. 26.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a wall (c) a tree (d) the Sun
27. 27.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) only short walls (b) nothing at all (c) taller walls (d) the ground
28. 28.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a balloon (c) a pencil (d) an empty juice carton
29. 29.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
30. 30.🧺 Which of these is needed for the periscope? (a) vinegar (b) two small mirrors (c) a battery cell (d) yeast
31. 31.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a mirror (d) a dull brick
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a magnet (d) a ruler
33. 33.⚖️ 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
34. 34.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
35. 35.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) a mirror (d) dark soil
36. 36.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
37. 37.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) black cloth (d) a mirror
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True
39. 39.🛟 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
40. 40.⚖️ 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

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