Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 933 · 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 kept the same? (a) how clear the view is (b) the same light (c) the angle of the mirrors
2. 2.True or false: a rough wooden board reflects light poorly. (a) True (b) False
3. 3.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
4. 4.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) aluminium foil (d) dark soil
5. 5.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 180 degrees (c) 10 degrees (d) 90 degrees
6. 6.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
7. 7.🔍 Which is the odd one out? (a) a mirror (b) a rough wooden board (c) dark soil (d) black cloth
8. 8.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
9. 9.True or false: a pencil is needed for the periscope. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) aluminium foil (d) a mirror
11. 11.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) in colour (d) upside down only
12. 12.🛟 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
13. 13.True or false: yeast is needed for the periscope. (a) False (b) True
14. 14.⚖️ 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 object we look at (c) how clear the view is (d) the same carton
15. 15.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) only darkness (c) two pictures (d) a rainbow
16. 16.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
17. 17.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
18. 18.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a pencil (c) sticky tape (d) a ruler
20. 20.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a battery cell (c) vinegar (d) a magnet
22. 22.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a pilot in a plane (d) a submarine crew
23. 23.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) an empty juice carton (c) two small mirrors (d) a ruler
24. 24.🔭 Which of these reflects light well? (a) black cloth (b) a rough wooden board (c) aluminium foil (d) a dull brick
25. 25.🔭 How many times does light bounce off a mirror in a simple periscope?
26. 26.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) dark soil (d) a rough wooden board
27. 27.⚖️ 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
28. 28.True or false: still clear water reflects light well. (a) False (b) True
29. 29.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
30. 30.🔭 How many mirrors does a simple periscope use?
31. 31.True or false: still clear water reflects light poorly. (a) False (b) True
32. 32.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
33. 33.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🔍 Which is the odd one out? (a) dark soil (b) a dull brick (c) black cloth (d) aluminium foil
37. 37.🔍 Which is the odd one out? (a) black cloth (b) a shiny steel plate (c) a rough wooden board (d) dark soil
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) yeast (c) sticky tape (d) an empty juice carton
39. 39.True or false: a pencil is not needed for the periscope. (a) False (b) True
40. 40.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed

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