Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 880 · 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.🔍 Which is the odd one out? (a) a mirror (b) black cloth (c) dark soil (d) a rough wooden board
2. 2.⚖️ 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 carton (c) how clear the view is (d) the object we look at
3. 3.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
4. 4.⚖️ 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 same carton (c) the object we look at (d) the angle of the mirrors
5. 5.True or false: a balloon is needed for the periscope. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a shiny steel plate (b) a dull brick (c) a rough wooden board (d) black cloth
7. 7.🔭 Who uses a periscope to look above the water? (a) a pilot in a plane (b) a farmer (c) a submarine crew (d) a baker
8. 8.⚖️ 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) True (b) False
9. 9.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.🔍 Which is the odd one out? (a) still clear water (b) a shiny steel plate (c) a mirror (d) dark soil
12. 12.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same carton is what we measure. (a) False (b) True
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) two small mirrors (c) sticky tape (d) an empty juice carton
14. 14.🔍 Which is the odd one out? (a) a rough wooden board (b) dark soil (c) a dull brick (d) aluminium foil
15. 15.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) big wall mirrors (c) plastic safety mirrors (d) broken glass bits
16. 16.🔍 Which is the odd one out? (a) still clear water (b) black cloth (c) a shiny steel plate (d) a mirror
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is kept the same. (a) False (b) True
18. 18.🧺 Do we need a magnet for the periscope? (a) needed (b) not needed
19. 19.🔮 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
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.⚖️ 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) True (b) False
22. 22.🛟 Who should cut the holes in the juice carton? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
23. 23.True or false: still clear water reflects light well. (a) True (b) False
24. 24.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
25. 25.⚖️ 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
26. 26.⚖️ 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) the object we look at (c) how clear the view is
27. 27.🔭 How many mirrors does a simple periscope use?
28. 28.🧺 Which of these is needed for the periscope? (a) vinegar (b) a magnet (c) sticky tape (d) turmeric powder
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the same mirrors (b) the angle of the mirrors (c) how clear the view is
31. 31.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) magnetism (c) refraction (d) reflection
32. 32.⚖️ 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) False (b) True
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) two small mirrors (c) vinegar (d) sticky tape
34. 34.🔭 Which of these reflects light well? (a) dark soil (b) a shiny steel plate (c) a rough wooden board (d) black cloth
35. 35.🔭 Which of these reflects light well? (a) still clear water (b) a dull brick (c) black cloth (d) dark soil
36. 36.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark
37. 37.🔭 Which of these reflects light well? (a) aluminium foil (b) a dull brick (c) black cloth (d) a rough wooden board
38. 38.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a shiny steel plate (d) a dull brick
40. 40.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light well (b) reflects light poorly

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