Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 459 · 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.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
2. 2.🔭 At what angle are the mirrors set in a simple periscope? (a) 45 degrees (b) 10 degrees (c) 90 degrees (d) 180 degrees
3. 3.True or false: a shiny steel plate reflects light well. (a) True (b) False
4. 4.True or false: sticky tape is needed for the periscope. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a dull brick (b) aluminium foil (c) a rough wooden board (d) black cloth
6. 6.True or false: still clear water reflects light poorly. (a) True (b) False
7. 7.⚖️ 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 object we look at
8. 8.🔭 How many times does light bounce off a mirror in a simple periscope?
9. 9.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) only short walls (d) nothing at all
10. 10.⚖️ 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 measure it (b) we keep it the same (c) we change it
11. 11.🧺 Which of these is not needed for the periscope? (a) a ruler (b) vinegar (c) two small mirrors (d) a pencil
12. 12.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a magnet (c) two small mirrors (d) a battery cell
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a ruler (c) sticky tape (d) a magnet
14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) broken glass bits (b) big wall mirrors (c) plastic safety mirrors (d) loose glass panes
15. 15.🛟 Who should cut the holes in the juice carton? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
16. 16.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) a pencil (d) a magnet
17. 17.⚖️ 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 light (d) the same mirrors
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) sticky tape (d) an empty juice carton
19. 19.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is kept the same. (a) False (b) True
20. 20.⚖️ 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 angle of the mirrors (c) the object we look at (d) the same light
21. 21.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is the one thing we change. (a) False (b) True
22. 22.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) only darkness (d) a rainbow
23. 23.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) a ruler (c) two small mirrors (d) a pencil
25. 25.🔭 Which of these reflects light well? (a) dark soil (b) a mirror (c) a rough wooden board (d) black cloth
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) a balloon (c) two small mirrors (d) sticky tape
27. 27.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is what we measure. (a) True (b) False
28. 28.True or false: dark soil reflects light well. (a) True (b) False
29. 29.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
30. 30.🧺 Which of these is needed for the periscope? (a) vinegar (b) a battery cell (c) an empty juice carton (d) yeast
31. 31.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
32. 32.🔭 Which of these reflects light well? (a) a rough wooden board (b) a dull brick (c) black cloth (d) a shiny steel plate
33. 33.True or false: a dull brick reflects light well. (a) True (b) False
34. 34.⚖️ 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 change it (b) we measure it (c) we keep it the same
35. 35.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) sticky tape (d) a battery cell
36. 36.True or false: a ruler is needed for the periscope. (a) True (b) False
37. 37.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a magnet (d) a ruler
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
40. 40.🔭 What does a periscope let you do? (a) see germs (b) hear far sounds (c) see over a wall (d) see in the dark

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