Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 759 · 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.⚖️ 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 same light (c) the object we look at (d) the angle of the mirrors
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🧺 Which of these is not needed for the periscope? (a) a magnet (b) sticky tape (c) two small mirrors (d) a ruler
4. 4.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) only short walls (c) nothing at all (d) taller walls
5. 5.🔭 Does a mirror reflect light well or poorly? (a) reflects light poorly (b) reflects light well
6. 6.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) a brighter view (d) only darkness
7. 7.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) a ruler (c) a pencil (d) yeast
8. 8.True or false: a mirror reflects light poorly. (a) True (b) False
9. 9.🛟 You must never point a periscope or a mirror at ___. (a) a friend’s toy (b) a tree (c) the Sun (d) a wall
10. 10.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
11. 11.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) a rough wooden board (d) dark soil
13. 13.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) vinegar (d) two small mirrors
14. 14.🔭 Which of these reflects light poorly? (a) still clear water (b) black cloth (c) a mirror (d) aluminium foil
15. 15.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) two small mirrors (c) a battery cell (d) a ruler
16. 16.🔭 Which of these reflects light poorly? (a) aluminium foil (b) a mirror (c) still clear water (d) dark soil
17. 17.⚖️ 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 keep it the same (b) we measure it (c) we change it
18. 18.🔭 Which of these reflects light poorly? (a) a mirror (b) a dull brick (c) a shiny steel plate (d) still clear water
19. 19.🔍 Which is the odd one out? (a) a shiny steel plate (b) still clear water (c) a mirror (d) a dull brick
20. 20.🔭 Which of these reflects light well? (a) black cloth (b) a mirror (c) a rough wooden board (d) a dull brick
21. 21.📘 Light bouncing off a mirror is called ___. (a) magnetism (b) reflection (c) evaporation (d) refraction
22. 22.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
23. 23.True or false: dark soil reflects light well. (a) True (b) False
24. 24.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) two small mirrors (c) a battery cell (d) a balloon
25. 25.🔭 How many times does light bounce off a mirror in a simple periscope?
26. 26.True or false: a pencil is not needed for the periscope. (a) True (b) False
27. 27.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) vinegar (c) an empty juice carton (d) a balloon
28. 28.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
29. 29.True or false: sticky tape is needed for the periscope. (a) False (b) True
30. 30.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
31. 31.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is kept the same. (a) False (b) True
32. 32.🧺 Do we need sticky tape for the periscope? (a) needed (b) not needed
33. 33.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
34. 34.⚖️ 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) the same light (c) the angle of the mirrors (d) how clear the view is
35. 35.🔍 Which is the odd one out? (a) dark soil (b) black cloth (c) a rough wooden board (d) aluminium foil
36. 36.🧺 Which of these is needed for the periscope? (a) a magnet (b) a pencil (c) a balloon (d) yeast
37. 37.🧺 Which of these is not needed for the periscope? (a) a pencil (b) sticky tape (c) yeast (d) two small mirrors
38. 38.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
39. 39.True or false: aluminium foil reflects light well. (a) True (b) False
40. 40.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) flipped left to right (d) upside down only

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