Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 510 · 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 a balloon for the periscope? (a) not needed (b) needed
2. 2.⚖️ 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
3. 3.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) turmeric powder (b) a pencil (c) a ruler (d) sticky tape
4. 4.⚖️ 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
5. 5.🔭 Which of these reflects light well? (a) dark soil (b) a rough wooden board (c) a dull brick (d) a mirror
6. 6.🔍 Which is the odd one out? (a) aluminium foil (b) a rough wooden board (c) a mirror (d) still clear water
7. 7.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
8. 8.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same carton (b) the same mirrors (c) the angle of the mirrors (d) how clear the view is
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) how clear the view is (b) the angle of the mirrors (c) the same mirrors (d) the same light
10. 10.⚖️ 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 measure it (b) we change it (c) we keep it the same
11. 11.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
12. 12.🔭 Does a rough wooden board reflect light well or poorly? (a) reflects light poorly (b) reflects light well
13. 13.🧺 Which of these is needed for the periscope? (a) a pencil (b) yeast (c) a balloon (d) a battery cell
14. 14.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) magnetism (d) refraction
15. 15.True or false: sticky tape is needed for the periscope. (a) True (b) False
16. 16.🔭 How many times does light bounce off a mirror in a simple periscope?
17. 17.🧺 Which of these is needed for the periscope? (a) a balloon (b) a battery cell (c) a magnet (d) a ruler
18. 18.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) dark soil (d) a rough wooden board
19. 19.⚖️ 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
20. 20.🔮 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
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.⚖️ 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 same light (c) the angle of the mirrors
24. 24.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) a pencil (c) sticky tape (d) a balloon
25. 25.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a dull brick (d) a shiny steel plate
26. 26.🔭 Which of these reflects light poorly? (a) still clear water (b) aluminium foil (c) black cloth (d) a mirror
27. 27.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a pencil (c) two small mirrors (d) a battery cell
28. 28.🔭 What does a periscope let you do? (a) see over a wall (b) hear far sounds (c) see in the dark (d) see germs
29. 29.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) an empty juice carton (c) sticky tape (d) a ruler
31. 31.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) two pictures (d) a brighter view
32. 32.⚖️ 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
33. 33.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) a magnet (c) two small mirrors (d) a pencil
35. 35.⚖️ 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
36. 36.True or false: aluminium foil reflects light well. (a) True (b) False
37. 37.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
38. 38.🧺 Do we need yeast for the periscope? (a) not needed (b) needed
39. 39.🔭 Why must the two mirrors face each other and be parallel? (a) to make it heavy (b) so light reaches the eye (c) so it looks shiny (d) so it can float
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is

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