Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 352 · 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 light is the one thing we change. (a) False (b) True
3. 3.🧺 Which of these is not needed for the periscope? (a) two small mirrors (b) sticky tape (c) a battery cell (d) a ruler
4. 4.🔭 How many times does light bounce off a mirror in a simple periscope?
5. 5.True or false: a balloon is needed for the periscope. (a) True (b) False
6. 6.True or false: an empty juice carton is needed for the periscope. (a) False (b) True
7. 7.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
8. 8.🔭 Why must the two mirrors face each other and be parallel? (a) so it can float (b) to make it heavy (c) so it looks shiny (d) so light reaches the eye
9. 9.🧺 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) vinegar
10. 10.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) sticky tape (c) a balloon (d) a ruler
11. 11.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a battery cell (b) an empty juice carton (c) two small mirrors (d) a pencil
12. 12.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a brighter view (b) two pictures (c) a rainbow (d) only darkness
13. 13.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) only short walls (d) taller walls
14. 14.🧺 Do we need a battery cell for the periscope? (a) not needed (b) needed
15. 15.🔭 Which of these reflects light well? (a) still clear water (b) black cloth (c) dark soil (d) a rough wooden board
16. 16.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) yeast (b) a ruler (c) an empty juice carton (d) sticky tape
17. 17.True or false: sticky tape is needed for the periscope. (a) True (b) False
18. 18.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
19. 19.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) yeast (c) vinegar (d) a balloon
20. 20.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
21. 21.🔭 How many mirrors does a simple periscope use?
22. 22.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the same light (b) the same mirrors (c) how clear the view is (d) the object we look at
23. 23.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.🔭 Which of these reflects light poorly? (a) a shiny steel plate (b) black cloth (c) still clear water (d) a mirror
26. 26.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) an empty juice carton (c) sticky tape (d) a pencil
27. 27.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) flipped left to right (c) upside down only (d) in colour
28. 28.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
29. 29.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 90 degrees (c) 10 degrees (d) 45 degrees
30. 30.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see germs (d) see over a wall
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the periscope? (a) yeast (b) a ruler (c) an empty juice carton (d) two small mirrors
33. 33.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) a balloon (c) a pencil (d) vinegar
34. 34.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) vinegar (c) a ruler (d) a pencil
35. 35.🧺 Do we need two small mirrors for the periscope? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.True or false: a mirror reflects light poorly. (a) True (b) False
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same light”? (a) we measure it (b) we keep it the same (c) we change it

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