Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 642 · 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 “how clear the view is”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
3. 3.True or false: a ruler is not needed for the periscope. (a) True (b) False
4. 4.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
5. 5.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.⚖️ 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) how clear the view is (c) the same mirrors (d) the angle of the mirrors
7. 7.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
8. 8.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a friend’s toy (d) a wall
9. 9.🔭 How many times does light bounce off a mirror in a simple periscope?
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) turmeric powder (c) an empty juice carton (d) a pencil
12. 12.🧺 Which of these is needed for the periscope? (a) a magnet (b) a balloon (c) turmeric powder (d) a ruler
13. 13.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a baker (d) a submarine crew
14. 14.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
15. 15.True or false: vinegar is needed for the periscope. (a) False (b) True
16. 16.True or false: sticky tape is not needed for the periscope. (a) False (b) True
17. 17.🧺 Which of these is not needed for the periscope? (a) a ruler (b) a pencil (c) an empty juice carton (d) a magnet
18. 18.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) aluminium foil (d) a rough wooden board
19. 19.🔮 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
20. 20.⚖️ 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
21. 21.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) the ground (d) only short walls
22. 22.🔮 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
23. 23.True or false: an empty juice carton is 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 mirrors is kept the same. (a) True (b) False
25. 25.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) sticky tape (d) turmeric powder
26. 26.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) a shiny steel plate (d) black cloth
27. 27.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
28. 28.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light poorly (b) reflects light well
29. 29.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
30. 30.True or false: a mirror reflects light well. (a) False (b) True
31. 31.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) black cloth (d) a shiny steel plate
32. 32.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
33. 33.⚖️ 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) True (b) False
34. 34.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) two small mirrors (d) yeast
36. 36.True or false: still clear water reflects light poorly. (a) False (b) True
37. 37.⚖️ 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
38. 38.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a shiny steel plate (d) a mirror
39. 39.🔭 Why must the two mirrors face each other and be parallel? (a) so it looks shiny (b) so light reaches the eye (c) so it can float (d) to make it heavy
40. 40.⚖️ 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) False (b) True

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