Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 141 · 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.🔮 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
2. 2.⚖️ 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 angle of the mirrors (c) the same carton (d) the object we look at
3. 3.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) a shiny steel plate (d) a rough wooden board
4. 4.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
5. 5.🔭 Does a dull brick reflect light well or poorly? (a) reflects light well (b) reflects light poorly
6. 6.🔭 How many mirrors does a simple periscope use?
7. 7.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) plastic safety mirrors (c) loose glass panes (d) big wall mirrors
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) False (b) True
9. 9.🧺 Which of these is not needed for the periscope? (a) a pencil (b) yeast (c) a ruler (d) two small mirrors
10. 10.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
11. 11.True or false: a dull brick reflects light poorly. (a) True (b) False
12. 12.⚖️ 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
13. 13.🔍 Which is the odd one out? (a) dark soil (b) a mirror (c) aluminium foil (d) still clear water
14. 14.True or false: a mirror reflects light poorly. (a) True (b) False
15. 15.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) a magnet (c) two small mirrors (d) sticky tape
17. 17.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) vinegar (c) a pencil (d) sticky tape
18. 18.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
19. 19.🔭 Does a rough wooden board 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) a rainbow (c) only darkness (d) a brighter view
21. 21.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
22. 22.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) a ruler (d) vinegar
24. 24.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.True or false: aluminium foil reflects light well. (a) True (b) False
26. 26.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) black cloth (d) still clear water
27. 27.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
28. 28.🧺 Do we need a balloon for the periscope? (a) needed (b) not needed
29. 29.🔍 Which is the odd one out? (a) still clear water (b) aluminium foil (c) black cloth (d) a mirror
30. 30.🧺 Which of these is not needed for the periscope? (a) a ruler (b) sticky tape (c) turmeric powder (d) an empty juice carton
31. 31.True or false: a rough wooden board reflects light poorly. (a) True (b) False
32. 32.True or false: a ruler is needed for the periscope. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a pencil (d) a magnet
35. 35.True or false: a rough wooden board reflects light well. (a) True (b) False
36. 36.🔭 Who uses a periscope to look above the water? (a) a submarine crew (b) a farmer (c) a pilot in a plane (d) a baker
37. 37.True or false: a battery cell is needed for the periscope. (a) True (b) False
38. 38.True or false: vinegar is not needed for the periscope. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a mirror (b) aluminium foil (c) a shiny steel plate (d) a rough wooden board
40. 40.🧺 Which of these is needed for the periscope? (a) a battery cell (b) vinegar (c) yeast (d) an empty juice carton

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