Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 388 · 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.🛟 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
2. 2.⚖️ 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) False (b) True
3. 3.🔭 Does a dull brick reflect light well or poorly? (a) reflects light poorly (b) reflects light well
4. 4.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
5. 5.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same light is kept the same. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) still clear water (b) dark soil (c) black cloth (d) a rough wooden board
7. 7.🔭 Does a mirror reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) an empty juice carton (b) sticky tape (c) a pencil (d) yeast
9. 9.🧺 Do we need an empty juice carton for the periscope? (a) needed (b) not needed
10. 10.🔍 Which is the odd one out? (a) a mirror (b) still clear water (c) a shiny steel plate (d) dark soil
11. 11.🧺 Which of these is not needed for the periscope? (a) sticky tape (b) an empty juice carton (c) yeast (d) a pencil
12. 12.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) a shiny steel plate (d) aluminium foil
13. 13.🔭 Which of these reflects light well? (a) a rough wooden board (b) aluminium foil (c) black cloth (d) dark soil
14. 14.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) black cloth (c) a mirror (d) aluminium foil
15. 15.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
16. 16.🔭 Which of these reflects light well? (a) still clear water (b) dark soil (c) a dull brick (d) black cloth
17. 17.🔭 Which of these reflects light well? (a) a dull brick (b) a rough wooden board (c) black cloth (d) a mirror
18. 18.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) reflection (c) magnetism (d) refraction
19. 19.🔭 How many mirrors does a simple periscope use?
20. 20.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) loose glass panes (c) big wall mirrors (d) broken glass bits
21. 21.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) sticky tape (d) a balloon
22. 22.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a pencil (c) sticky tape (d) a ruler
23. 23.⚖️ 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 measure it (c) we keep it the same
24. 24.⚖️ 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 object we look at (c) the same carton (d) the angle of the mirrors
25. 25.🧺 Do we need a pencil for the periscope? (a) not needed (b) needed
26. 26.True or false: a dull brick reflects light well. (a) True (b) False
27. 27.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.True or false: a balloon is not needed for the periscope. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a dull brick (b) a rough wooden board (c) dark soil (d) a mirror
31. 31.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) yeast (c) a pencil (d) a magnet
32. 32.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
33. 33.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
34. 34.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a brighter view (d) a rainbow
35. 35.🧺 Which of these is not needed for the periscope? (a) turmeric powder (b) two small mirrors (c) a ruler (d) an empty juice carton
36. 36.🧺 Which of these is not needed for the periscope? (a) a balloon (b) two small mirrors (c) an empty juice carton (d) a pencil
37. 37.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) an empty juice carton (c) a pencil (d) a magnet
38. 38.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is what we measure. (a) True (b) False
39. 39.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
40. 40.🔭 How many times does light bounce off a mirror in a simple periscope?

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