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Moon Formation and Structure


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Moon Formation and Structure

  1. 1. Exploring the moon and its features. Attachment A Instructor Presentation
  2. 2. Photo of the earth taken by Apollo astronauts from the surface of the moon. Notice that the earth goes through “phases” if you are on the moon.
  3. 3. How did the moon form?
  4. 5. An object the size of Mars collided with the Earth. There is a lot of evidence for this event!
  5. 6. Animation of lunar formation
  6. 7. <ul><li>Material on the moon is like our crust and mantle. Very little iron is there. </li></ul><ul><li>No atmosphere on the moon due to high energy impact. </li></ul><ul><li>Same oxygen atoms are on the earth and moon that are different from ones found in comets and meteoriods! </li></ul>Collision Theory Evidence !
  7. 8. What theory best describes the formation of the moon? Collision Theory Mastery Question
  8. 9. What evidence supports the collision theory of lunar formation? <ul><li>Similar surface composition </li></ul><ul><li>No atmosphere due to the force of impact </li></ul><ul><li>Similar oxygen atoms – different than on other celestial objects </li></ul><ul><li>Mastery Question </li></ul>
  9. 10. Why do you think we have not yet found the point of impact on Earth? Self-expressive Question
  10. 11. Comparisons: 1/4 our diameter 1/6 our gravity About 240,000 miles away
  11. 12. Lunar far side looks very different from the side of the moon we always see!
  12. 13. NASA's Apollo missions Goal was to put men on the moon to explore and conduct scientific experiments. Neil Armstrong was the first person to walk on the moon. He did so on July 20, 1969. Video clip of Apollo Missions
  13. 14. Regolith – lunar soil – caused by meteorite impacts
  14. 15. Why is the footprint still visible? Why hasn’t it changed? <ul><li>No atmosphere </li></ul><ul><li>No agents of weathering and erosion </li></ul><ul><li>Understanding Question – connection to previously learned material </li></ul>
  15. 17. Maria Rays around craters Maria Highlands
  16. 18. Apollo 15 Maria Highlands
  17. 19. Apollo 15 Old crater newer crater
  18. 20. Photo Apollo 15
  19. 21. Earthrise Apollo 8
  20. 22. Crater Copernicus viewed from lunar orbit Apollo 12
  21. 23. What are three features of the moon? <ul><li>Maria </li></ul><ul><li>Highlands </li></ul><ul><li>Craters </li></ul><ul><li>Mastery Question </li></ul>
  22. 24. Crescent Earth from Apollo 11 mission
  23. 25. Crescent Earth rises above lunar horizon
  24. 26. Capturing the Sun: aluminum panel traps atomic particles from the Sun during the Apollo 11 mission.
  25. 27. Apollo 12 Alan Bean descends the Intrepid's ladder
  26. 28. seismic experiment Apollo 14 Moonquakes occur because of the earth pulling on the moon. They are called “rock tides.”
  27. 29. Apollo 15
  28. 30. Rock sampling Apollo 15
  29. 32. Apollo 16 – getting soil samples
  30. 33. Apollo 17
  31. 34. Lunar lander and lunar rover.
  32. 35. Fixing a fender Apollo 17
  33. 36. Do you think NASA should send another mission to the moon? <ul><li>YES! </li></ul><ul><li>Learn more </li></ul><ul><li>Possible life? </li></ul><ul><li>Future colonization </li></ul><ul><li>Find the Man in the Moon </li></ul><ul><li>NO! </li></ul><ul><li>We have been there 17 times already </li></ul><ul><li>Too much money </li></ul><ul><li>Need to explore elsewhere </li></ul>Interpersonal Question
  34. 37. Do other lunar formation theories have merit?
  35. 38. Your assignment… <ul><li>Choose one of the other three lunar formation theories. Write a news release describing new evidence that proves your theory. </li></ul>