Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 886 · 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.True or false: two small mirrors is needed for the periscope. (a) False (b) True
2. 2.True or false: an empty juice carton is not needed for the periscope. (a) True (b) False
3. 3.🛟 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
4. 4.⚖️ 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 measure it (c) we keep it the same
5. 5.True or false: black cloth reflects light well. (a) False (b) True
6. 6.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
7. 7.⚖️ 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 angle of the mirrors (c) the same mirrors
8. 8.🔭 How many mirrors does a simple periscope use?
9. 9.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) taller walls (d) nothing at all
10. 10.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
11. 11.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
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 angle of the mirrors (b) the same mirrors (c) how clear the view is (d) the same light
13. 13.⚖️ 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 keep it the same (c) we measure it
14. 14.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a battery cell (c) an empty juice carton (d) a pencil
15. 15.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) a mirror (d) a shiny steel plate
16. 16.⚖️ 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
17. 17.🔍 Which is the odd one out? (a) a shiny steel plate (b) a rough wooden board (c) dark soil (d) a dull brick
18. 18.🔭 Which of these reflects light well? (a) a dull brick (b) dark soil (c) black cloth (d) aluminium foil
19. 19.🧺 Do we need vinegar for the periscope? (a) not needed (b) needed
20. 20.True or false: a dull brick reflects light poorly. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) dark soil (b) still clear water (c) aluminium foil (d) a mirror
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a ruler (d) vinegar
23. 23.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
24. 24.🧺 Which of these is not needed for the periscope? (a) a balloon (b) a ruler (c) sticky tape (d) a pencil
25. 25.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) a ruler (d) an empty juice carton
26. 26.🔍 Which is the odd one out? (a) a shiny steel plate (b) a mirror (c) a dull brick (d) still clear water
27. 27.🔍 Which is the odd one out? (a) black cloth (b) dark soil (c) a mirror (d) a rough wooden board
28. 28.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.True or false: a shiny steel plate reflects light well. (a) True (b) False
31. 31.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a brighter view (c) a rainbow (d) two pictures
32. 32.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same mirrors (b) how clear the view is (c) the object we look at (d) the angle of the mirrors
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 change it (b) we measure it (c) we keep it the same
34. 34.True or false: vinegar is needed for the periscope. (a) True (b) False
35. 35.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a battery cell (c) a pencil (d) a ruler
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
37. 37.True or false: black cloth reflects light poorly. (a) False (b) True
38. 38.⚖️ 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) True (b) False
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) a ruler (c) a pencil (d) a magnet
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is the one thing we change. (a) False (b) True

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