Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 194 · 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.True or false: an empty juice carton is not needed for the periscope. (a) False (b) True
2. 2.🔭 Which of these reflects light well? (a) dark soil (b) black cloth (c) still clear water (d) a dull brick
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
4. 4.🧺 Which of these is not needed for the periscope? (a) a ruler (b) an empty juice carton (c) a balloon (d) a pencil
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) yeast (c) an empty juice carton (d) a pencil
6. 6.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
7. 7.⚖️ 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
8. 8.True or false: a mirror reflects light well. (a) False (b) True
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same mirrors (c) the angle of the mirrors (d) the object we look at
10. 10.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
11. 11.🔍 Which is the odd one out? (a) a mirror (b) a shiny steel plate (c) still clear water (d) black cloth
12. 12.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) two pictures (c) a rainbow (d) a brighter view
13. 13.🔭 At what angle are the mirrors set in a simple periscope? (a) 90 degrees (b) 10 degrees (c) 180 degrees (d) 45 degrees
14. 14.🔭 Which of these reflects light poorly? (a) aluminium foil (b) dark soil (c) a shiny steel plate (d) still clear water
15. 15.🔭 Which of these reflects light well? (a) a rough wooden board (b) black cloth (c) dark soil (d) a shiny steel plate
16. 16.🔭 What does a periscope let you do? (a) see in the dark (b) see over a wall (c) hear far sounds (d) see germs
17. 17.True or false: still clear water reflects light poorly. (a) True (b) False
18. 18.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) taller walls (b) the ground (c) nothing at all (d) only short walls
19. 19.⚖️ 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
20. 20.🔍 Which is the odd one out? (a) a rough wooden board (b) a mirror (c) still clear water (d) a shiny steel plate
21. 21.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) magnetism (c) reflection (d) refraction
22. 22.⚖️ 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) how clear the view is (c) the angle of the mirrors
23. 23.🔭 Which of these reflects light well? (a) black cloth (b) a dull brick (c) a rough wooden board (d) aluminium foil
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.True or false: dark soil reflects light poorly. (a) False (b) True
27. 27.True or false: sticky tape is not needed for the periscope. (a) True (b) False
28. 28.🧺 Which of these is needed for the periscope? (a) vinegar (b) an empty juice carton (c) turmeric powder (d) yeast
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🛟 Which mirrors are safest for a children’s periscope? (a) loose glass panes (b) plastic safety mirrors (c) big wall mirrors (d) broken glass bits
31. 31.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) two small mirrors (c) an empty juice carton (d) vinegar
32. 32.🧺 Do we need a ruler for the periscope? (a) not needed (b) needed
33. 33.🔍 Which is the odd one out? (a) still clear water (b) a rough wooden board (c) a dull brick (d) black cloth
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a magnet (b) sticky tape (c) an empty juice carton (d) a ruler
35. 35.🔭 Does dark soil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
36. 36.⚖️ 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 angle of the mirrors (c) the same carton
37. 37.⚖️ 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 mirrors
38. 38.🧺 Do we need a balloon for the periscope? (a) not needed (b) needed
39. 39.🧺 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
40. 40.True or false: a magnet is not needed for the periscope. (a) False (b) True

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