Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 66 · 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? What do we do with “the angle of the mirrors”? (a) we measure it (b) we keep it the same (c) we change it
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) how clear the view is (c) the angle of the mirrors
3. 3.True or false: vinegar is needed for the periscope. (a) True (b) False
4. 4.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) upside down only (c) flipped left to right (d) in colour
5. 5.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) still clear water (d) black cloth
6. 6.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 45 degrees (c) 10 degrees (d) 180 degrees
7. 7.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the same carton (c) the same light (d) the angle of the mirrors
8. 8.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a dull brick (d) a shiny steel plate
9. 9.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
10. 10.🧺 Which of these is needed for the periscope? (a) a magnet (b) an empty juice carton (c) turmeric powder (d) vinegar
11. 11.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) how clear the view is (b) the same mirrors (c) the angle of the mirrors
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
13. 13.🔭 Which of these reflects light well? (a) a dull brick (b) a shiny steel plate (c) black cloth (d) a rough wooden board
14. 14.🔭 Which of these reflects light poorly? (a) aluminium foil (b) black cloth (c) still clear water (d) a shiny steel plate
15. 15.🔭 How many mirrors does a simple periscope use?
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a balloon (d) sticky tape
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) vinegar (c) sticky tape (d) two small mirrors
18. 18.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) a ruler (d) a magnet
19. 19.⚖️ 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
20. 20.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a shiny steel plate (d) still clear water
21. 21.⚖️ 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 light (d) how clear the view is
22. 22.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) a rainbow (d) two pictures
23. 23.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) a ruler (d) a magnet
24. 24.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) turmeric powder (d) two small mirrors
25. 25.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) big wall mirrors (d) plastic safety mirrors
26. 26.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
27. 27.True or false: a shiny steel plate reflects light well. (a) True (b) False
28. 28.🔭 Which of these reflects light poorly? (a) a mirror (b) a rough wooden board (c) aluminium foil (d) still clear water
29. 29.🔍 Which is the odd one out? (a) a shiny steel plate (b) a dull brick (c) a rough wooden board (d) black cloth
30. 30.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) a dull brick (d) black cloth
31. 31.True or false: a pencil is not needed for the periscope. (a) False (b) True
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the periscope? (a) yeast (b) vinegar (c) two small mirrors (d) a battery cell
34. 34.⚖️ 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
35. 35.🔭 Who uses a periscope to look above the water? (a) a baker (b) a pilot in a plane (c) a submarine crew (d) a farmer
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) False (b) True
37. 37.True or false: a battery cell is needed for the periscope. (a) True (b) False
38. 38.⚖️ 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
39. 39.🔭 Which of these reflects light poorly? (a) a mirror (b) dark soil (c) aluminium foil (d) a shiny steel plate
40. 40.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) a mirror (d) black cloth

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