Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 443 · 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.⚖️ 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) how clear the view is (c) the angle of the mirrors (d) the same mirrors
2. 2.🔭 Which of these reflects light well? (a) a mirror (b) a rough wooden board (c) black cloth (d) dark soil
3. 3.True or false: still clear water reflects light well. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) aluminium foil (d) still clear water
5. 5.🔍 Which is the odd one out? (a) aluminium foil (b) a dull brick (c) black cloth (d) a rough wooden board
6. 6.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
7. 7.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
8. 8.🔮 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
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same mirrors (c) the same carton (d) how clear the view is
11. 11.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
12. 12.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a dull brick (d) a mirror
14. 14.🔍 Which is the odd one out? (a) a rough wooden board (b) still clear water (c) aluminium foil (d) a mirror
15. 15.⚖️ 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 keep it the same (c) we change it
16. 16.True or false: still clear water reflects light poorly. (a) True (b) False
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) vinegar (d) two small mirrors
18. 18.⚖️ 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 keep it the same (b) we measure it (c) we change it
19. 19.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) black cloth (d) a shiny steel plate
20. 20.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) aluminium foil (d) dark soil
23. 23.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
24. 24.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) loose glass panes (d) big wall mirrors
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the object we look at
26. 26.🔭 How many mirrors does a simple periscope use?
27. 27.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
29. 29.True or false: a shiny steel plate reflects light well. (a) False (b) True
30. 30.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) a mirror (d) a dull brick
31. 31.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) a friend’s toy (d) the Sun
32. 32.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) yeast (d) a pencil
33. 33.🧺 Which of these is not needed for the periscope? (a) a pencil (b) two small mirrors (c) a battery cell (d) an empty juice carton
34. 34.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a baker (d) a submarine crew
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) False (b) True
36. 36.True or false: a rough wooden board reflects light well. (a) True (b) False
37. 37.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a brighter view (c) a rainbow (d) only darkness
38. 38.⚖️ 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 measure it (b) we change it (c) we keep it the same
39. 39.🧺 Which of these is needed for the periscope? (a) a magnet (b) a pencil (c) a balloon (d) vinegar
40. 40.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) a pencil (d) a balloon

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