Periscope STEM Project Worksheet

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

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