Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 917 · 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.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a pencil (c) sticky tape (d) a battery cell
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
3. 3.True or false: a mirror reflects light poorly. (a) False (b) True
4. 4.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
5. 5.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
6. 6.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) only darkness (c) two pictures (d) a brighter view
7. 7.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
8. 8.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a rough wooden board (d) a mirror
9. 9.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
10. 10.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) aluminium foil (d) a rough wooden board
11. 11.True or false: sticky tape is needed for the periscope. (a) True (b) False
12. 12.⚖️ 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 carton (b) the same mirrors (c) the angle of the mirrors (d) the object we look at
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a ruler (d) a pencil
14. 14.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 180 degrees (d) 45 degrees
15. 15.🧺 Which of these is needed for the periscope? (a) vinegar (b) a magnet (c) two small mirrors (d) a balloon
16. 16.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) loose glass panes (c) plastic safety mirrors (d) big wall mirrors
17. 17.True or false: a balloon is not needed for the periscope. (a) False (b) True
18. 18.🧺 Which of these is needed for the periscope? (a) yeast (b) a balloon (c) a magnet (d) a ruler
19. 19.🔭 Which of these reflects light poorly? (a) aluminium foil (b) black cloth (c) a shiny steel plate (d) still clear water
20. 20.True or false: dark soil reflects light poorly. (a) False (b) True
21. 21.⚖️ 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
22. 22.🔭 How many mirrors does a simple periscope use?
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) an empty juice carton (c) a pencil (d) yeast
25. 25.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.🔍 Which is the odd one out? (a) a rough wooden board (b) black cloth (c) a mirror (d) dark soil
27. 27.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) the Sun (c) a tree (d) a wall
28. 28.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
29. 29.True or false: a rough wooden board reflects light well. (a) True (b) False
30. 30.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is the one thing we change. (a) False (b) True
32. 32.⚖️ 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
33. 33.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a baker (d) a pilot in a plane
34. 34.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
35. 35.True or false: a dull brick reflects light well. (a) True (b) False
36. 36.🔭 Which of these reflects light poorly? (a) dark soil (b) a mirror (c) still clear water (d) a shiny steel plate
37. 37.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) dark soil (d) black cloth
39. 39.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same light (c) the same mirrors (d) the same carton
40. 40.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed

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