Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 931 · 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.True or false: a rough wooden board reflects light poorly. (a) False (b) True
2. 2.⚖️ 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
3. 3.True or false: aluminium foil reflects light poorly. (a) True (b) False
4. 4.🧺 Which of these is needed for the periscope? (a) a battery cell (b) a magnet (c) a pencil (d) yeast
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a ruler (c) two small mirrors (d) a pencil
6. 6.🔭 How many times does light bounce off a mirror in a simple periscope?
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) an empty juice carton (d) two small mirrors
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) an empty juice carton (c) two small mirrors (d) sticky tape
11. 11.🧺 Which of these is not needed for the periscope? (a) yeast (b) sticky tape (c) a ruler (d) an empty juice carton
12. 12.🔍 Which is the odd one out? (a) a rough wooden board (b) a shiny steel plate (c) still clear water (d) aluminium foil
13. 13.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) dark soil (d) a mirror
14. 14.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
15. 15.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a submarine crew (c) a farmer (d) a baker
16. 16.True or false: a mirror reflects light poorly. (a) True (b) False
17. 17.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) a wall (d) the Sun
18. 18.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) yeast (d) two small mirrors
19. 19.🔍 Which is the odd one out? (a) still clear water (b) a mirror (c) a dull brick (d) aluminium foil
20. 20.🔭 How many mirrors does a simple periscope use?
21. 21.True or false: sticky tape is needed for the periscope. (a) True (b) False
22. 22.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) a dull brick (d) a shiny steel plate
23. 23.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
24. 24.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) in colour (c) much bigger (d) upside down only
25. 25.🛟 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
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) the angle of the mirrors (c) how clear the view is
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) sticky tape (d) a ruler
28. 28.🔍 Which is the odd one out? (a) dark soil (b) a rough wooden board (c) still clear water (d) black cloth
29. 29.True or false: a dull brick reflects light poorly. (a) False (b) True
30. 30.⚖️ 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) the object we look at (c) how clear the view is
31. 31.🔭 Does still clear water reflect light well or poorly? (a) reflects light poorly (b) reflects light well
32. 32.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
33. 33.True or false: a pencil is not needed for the periscope. (a) True (b) False
34. 34.🔭 Which of these reflects light poorly? (a) a mirror (b) aluminium foil (c) a rough wooden board (d) still clear water
35. 35.🔭 Which of these reflects light well? (a) still clear water (b) a rough wooden board (c) dark soil (d) black cloth
36. 36.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) two small mirrors (d) a pencil
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the object we look at (b) the angle of the mirrors (c) the same mirrors (d) the same carton
38. 38.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
39. 39.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
40. 40.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed

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