Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 470 · 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? True or false: how clear the view is is the one thing we change. (a) True (b) False
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) the angle of the mirrors (c) how clear the view is
3. 3.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
4. 4.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) much bigger (c) flipped left to right (d) in colour
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the angle of the mirrors (b) how clear the view is (c) the object we look at (d) the same mirrors
6. 6.True or false: a ruler is not needed for the periscope. (a) False (b) True
7. 7.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.🔭 Which of these reflects light poorly? (a) still clear water (b) a shiny steel plate (c) a dull brick (d) aluminium foil
9. 9.🔭 How many mirrors does a simple periscope use?
10. 10.🔭 Which of these reflects light well? (a) a dull brick (b) black cloth (c) aluminium foil (d) a rough wooden board
11. 11.⚖️ 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
12. 12.🔭 How many times does light bounce off a mirror in a simple periscope?
13. 13.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
14. 14.🧺 Which of these is needed for the periscope? (a) an empty juice carton (b) a battery cell (c) yeast (d) turmeric powder
15. 15.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) black cloth (b) aluminium foil (c) dark soil (d) a dull brick
17. 17.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
18. 18.True or false: a mirror reflects light poorly. (a) False (b) True
19. 19.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
20. 20.True or false: black cloth reflects light well. (a) True (b) False
21. 21.True or false: vinegar is not needed for the periscope. (a) True (b) False
22. 22.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
23. 23.True or false: a magnet is not needed for the periscope. (a) True (b) False
24. 24.⚖️ 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
25. 25.⚖️ 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) True (b) False
26. 26.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
27. 27.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) vinegar (c) a pencil (d) two small mirrors
29. 29.🧺 Which of these is needed for the periscope? (a) yeast (b) a pencil (c) a magnet (d) a balloon
30. 30.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
31. 31.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) still clear water (d) a rough wooden board
32. 32.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
33. 33.⚖️ 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 change it (c) we measure it
34. 34.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.⚖️ 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
36. 36.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
37. 37.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) a rough wooden board (d) dark soil
38. 38.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) a rainbow (d) two pictures
39. 39.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
40. 40.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) still clear water (d) dark soil

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