Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 684 · 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 of these is not needed for the periscope? (a) an empty juice carton (b) a ruler (c) two small mirrors (d) vinegar
2. 2.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
3. 3.🔭 Who uses a periscope to look above the water? (a) a baker (b) a submarine crew (c) a pilot in a plane (d) a farmer
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a balloon (d) a pencil
5. 5.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) a rough wooden board (d) still clear water
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) how clear the view is (b) the angle of the mirrors (c) the same light (d) the same carton
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) turmeric powder (d) a ruler
8. 8.⚖️ 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) how clear the view is (c) the same mirrors
9. 9.🧺 Which of these is needed for the periscope? (a) a balloon (b) vinegar (c) turmeric powder (d) sticky tape
10. 10.🔮 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
11. 11.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
12. 12.True or false: aluminium foil reflects light poorly. (a) True (b) False
13. 13.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a tree (c) the Sun (d) a friend’s toy
14. 14.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
15. 15.🔮 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
16. 16.⚖️ 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
17. 17.⚖️ 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 change it (c) we measure it
18. 18.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
19. 19.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
20. 20.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
21. 21.🔭 How many mirrors does a simple periscope use?
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) an empty juice carton (d) yeast
23. 23.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) black cloth (d) a shiny steel plate
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same light (b) the angle of the mirrors (c) how clear the view is
25. 25.🧺 Which of these is not needed for the periscope? (a) a balloon (b) an empty juice carton (c) a ruler (d) a pencil
26. 26.🔭 How many times does light bounce off a mirror in a simple periscope?
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) a magnet (d) two small mirrors
28. 28.🛟 Which mirrors are safest for a children’s periscope? (a) big wall mirrors (b) plastic safety mirrors (c) loose glass panes (d) broken glass bits
29. 29.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
30. 30.True or false: sticky tape is not needed for the periscope. (a) True (b) False
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) an empty juice carton (d) vinegar
32. 32.True or false: a shiny steel plate reflects light well. (a) False (b) True
33. 33.⚖️ 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 change it (c) we keep it the same
34. 34.🔭 Which of these reflects light well? (a) still clear water (b) dark soil (c) black cloth (d) a dull brick
35. 35.True or false: vinegar is needed for the periscope. (a) False (b) True
36. 36.⚖️ 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 object we look at (c) the angle of the mirrors
37. 37.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
38. 38.🔍 Which is the odd one out? (a) still clear water (b) a dull brick (c) black cloth (d) dark soil
39. 39.🔭 Which of these reflects light well? (a) a rough wooden board (b) aluminium foil (c) dark soil (d) a dull brick
40. 40.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) yeast (c) a balloon (d) turmeric powder

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