Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 151 · 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.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) the Sun (d) a wall
2. 2.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a pencil (c) sticky tape (d) a ruler
4. 4.⚖️ 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 same carton (c) how clear the view is
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
6. 6.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) a ruler (d) a pencil
7. 7.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
8. 8.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) turmeric powder (d) a pencil
11. 11.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) the ground (c) nothing at all (d) only short walls
12. 12.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) a magnet (d) a pencil
13. 13.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is the one thing we change. (a) True (b) False
14. 14.True or false: a shiny steel plate reflects light poorly. (a) True (b) False
15. 15.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
16. 16.True or false: a ruler is needed for the periscope. (a) True (b) False
17. 17.🧺 Which of these is needed for the periscope? (a) vinegar (b) yeast (c) turmeric powder (d) an empty juice carton
18. 18.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a baker (c) a pilot in a plane (d) a farmer
19. 19.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) only darkness (c) a brighter view (d) a rainbow
21. 21.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
22. 22.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
23. 23.🔍 Which is the odd one out? (a) a dull brick (b) a shiny steel plate (c) aluminium foil (d) still clear water
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so light reaches the eye (c) to make it heavy (d) so it looks shiny
26. 26.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) aluminium foil (d) a rough wooden board
27. 27.⚖️ 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
28. 28.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) flipped left to right (c) much bigger (d) upside down only
29. 29.🧺 Which of these is needed for the periscope? (a) a balloon (b) a pencil (c) vinegar (d) turmeric powder
30. 30.True or false: dark soil reflects light poorly. (a) True (b) False
31. 31.🔭 Which of these reflects light well? (a) black cloth (b) a shiny steel plate (c) dark soil (d) a dull brick
32. 32.🔭 Which of these reflects light well? (a) a mirror (b) a dull brick (c) dark soil (d) a rough wooden board
33. 33.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) a shiny steel plate (d) still clear water
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) a balloon (d) an empty juice carton
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) True (b) False
36. 36.⚖️ 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) False (b) True
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) an empty juice carton (c) a ruler (d) a battery cell
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.⚖️ 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 measure it (c) we change it

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