Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 457 · 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.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a shiny steel plate (d) aluminium foil
2. 2.True or false: aluminium foil reflects light poorly. (a) False (b) True
3. 3.⚖️ 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 keep it the same (b) we measure it (c) we change it
4. 4.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 90 degrees (c) 10 degrees (d) 180 degrees
5. 5.🧺 Which of these is needed for the periscope? (a) sticky tape (b) a magnet (c) turmeric powder (d) a balloon
6. 6.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) a ruler (d) a magnet
8. 8.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same mirrors (b) the object we look at (c) the same carton (d) the angle of the mirrors
10. 10.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) aluminium foil (d) a dull brick
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) vinegar (c) an empty juice carton (d) a ruler
12. 12.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
13. 13.⚖️ 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
14. 14.🔭 How many mirrors does a simple periscope use?
15. 15.True or false: sticky tape is not needed for the periscope. (a) False (b) True
16. 16.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) upside down only (b) flipped left to right (c) in colour (d) much bigger
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) nothing at all (d) taller walls
18. 18.True or false: a dull brick reflects light poorly. (a) False (b) True
19. 19.⚖️ 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 change it (b) we measure it (c) we keep it the same
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is what we measure. (a) True (b) False
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) sticky tape (c) a pencil (d) turmeric powder
22. 22.🧺 Which of these is needed for the periscope? (a) a pencil (b) vinegar (c) a magnet (d) turmeric powder
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
25. 25.True or false: black cloth reflects light poorly. (a) False (b) True
26. 26.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) broken glass bits (c) plastic safety mirrors (d) loose glass panes
27. 27.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) so it looks shiny (c) to make it heavy (d) so light reaches the eye
28. 28.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) a balloon (d) sticky tape
29. 29.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) vinegar (d) two small mirrors
32. 32.True or false: a magnet is not needed for the periscope. (a) True (b) False
33. 33.🔭 How many times does light bounce off a mirror in a simple periscope?
34. 34.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
35. 35.🔍 Which is the odd one out? (a) black cloth (b) a dull brick (c) a shiny steel plate (d) dark soil
36. 36.🔭 Which of these reflects light poorly? (a) black cloth (b) still clear water (c) a shiny steel plate (d) a mirror
37. 37.⚖️ 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
38. 38.True or false: a dull brick reflects light well. (a) False (b) True
39. 39.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a rough wooden board (d) a shiny steel plate
40. 40.🧺 Do we need yeast for the periscope? (a) needed (b) not needed

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