Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 914 · 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.🔭 Which of these reflects light well? (a) a rough wooden board (b) a mirror (c) a dull brick (d) black cloth
2. 2.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
3. 3.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
4. 4.True or false: a magnet is needed for the periscope. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) black cloth
6. 6.True or false: a ruler is needed for the periscope. (a) True (b) False
7. 7.⚖️ 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
8. 8.⚖️ 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 mirrors (b) the same light (c) the angle of the mirrors (d) how clear the view is
9. 9.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
10. 10.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) in colour (c) flipped left to right (d) much bigger
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) two small mirrors (d) a magnet
12. 12.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🔭 Which of these reflects light poorly? (a) aluminium foil (b) dark soil (c) a mirror (d) still clear water
14. 14.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a shiny steel plate (d) a rough wooden board
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) the same light (c) the object we look at (d) how clear the view is
16. 16.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
17. 17.🔍 Which is the odd one out? (a) a dull brick (b) dark soil (c) a rough wooden board (d) a mirror
18. 18.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.True or false: vinegar is needed for the periscope. (a) False (b) True
21. 21.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) broken glass bits (d) loose glass panes
22. 22.⚖️ 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
23. 23.⚖️ 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) True (b) False
24. 24.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) the ground (c) only short walls (d) taller walls
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a pencil (d) a battery cell
26. 26.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
27. 27.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a battery cell (c) two small mirrors (d) a ruler
28. 28.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
29. 29.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a brighter view (d) a rainbow
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
32. 32.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
33. 33.🔭 How many times does light bounce off a mirror in a simple periscope?
34. 34.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the periscope? (a) a balloon (b) two small mirrors (c) a battery cell (d) yeast
36. 36.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
37. 37.True or false: two small mirrors is not needed for the periscope. (a) False (b) True
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same carton (b) the angle of the mirrors (c) how clear the view is
39. 39.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 180 degrees (c) 10 degrees (d) 45 degrees
40. 40.🔭 Which of these reflects light poorly? (a) a rough wooden board (b) a mirror (c) a shiny steel plate (d) aluminium foil

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