earth science final n.
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EARTH SCIENCE FINAL PowerPoint Presentation
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  2. Where did the matter that makes up the earth most directly come from?

  3. Giant exploded stars that formed nebula of dust and gas

  4. How do we know the earth isn’t made of matter from the BIG BANG?

  5. Because the Big Bang only produced Helium, Hydrogen and a couple of trace elements

  6. Where did our atmosphere first come from?

  7. Volcanoes gave off carbon dioxide, water vapor, nitrogen and other gasses

  8. Where did the oceans most directly come from after the earth cooled down a lot?

  9. Condensation of water vapor in the atmosphere

  10. Why are the daytime and nighttime temperature the same on Venus?

  11. It’s carbon dioxide atmosphere lets sunlight in, but doesn’t let the heat back out

  12. What causes the pressure in a star that causes it to begin its burning reaction?


  14. If very humid warm air hits very cold humid air, what kind of weather is most likely to occur?

  15. Precipitation of some sort, depending on the temperature

  16. Maritime air masses are always?

  17. Wet

  18. Tropical air masses are always

  19. Warm

  20. Continental air masses are always

  21. Dry

  22. Polar air masses are always

  23. Cold

  24. What is the largest object?

  25. Left to Right • Dust & Gas • Planetesimals • Proto-planets • Planet

  26. Why do planets finally stop getting larger?

  27. They sweep up all of the dust and gas

  28. Why is Neptune the coldest planet?

  29. Farthest from the sun

  30. Why was the earth once molten? (What was the main cause of the heat?)

  31. Collisions of the proto-planets melted it

  32. What is the force that causes particles in space to keep forming larger and larger clumps until they finally become a planet?

  33. Force = Gravity

  34. Why is Venus hotter than Mercury ?

  35. Heat from the sun radiates away from Mercury because it has no atmosphere. • Heat from the sun can’t escape Venus’ atmosphere because it is made of carbon dioxide

  36. Why were the gas giants able to capture hydrogen when the inner planets were unable to capture hydrogen?

  37. Near the sun, hydrogen and helium are warm and move too fast fro a planet to capture them. • Out near the gas giants it is very cold and the molecules slow down enough to be captured by the planets gravity

  38. What protects us from solar wind on earth?

  39. Earth’s magnetosphere or magnetic field

  40. The temperature of a star can be determined by it’s color. What is the correct order of star colors from the coolest to the hottest?

  41. Red Cool • Yellow Warmer • White Hot • Blue REAL HOT

  42. How can we tell when a blue star or a white star dies?

  43. They EXPLODE!

  44. BOOM!

  45. What type of star is the coolest?

  46. Red dwarf

  47. What type of star is our sun?

  48. Yellow

  49. What type of star has the most gravity?

  50. Blue