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10 Cards in this Set
- Front
- Back
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observation of young stars ( as well as theory) tell us that when the sun was young the solar wind
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was stronger then it was today
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why are inner planets made denser material tha teh outer plantes
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the inner part of the nebula only metals and rocks were able to condense because of the high temp , where as hydrogen compunds , although more abundant were only able to condense in cool outer regions
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which of the following are relatively unchanged fragments from the early period of planets buildding in teh solar system
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kulper belt comets, teh moon of mars, oort cloud comets asteroids
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according to our theory of the solar system formation , what are asteroids and comets
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left over planetesimals never accreted into plantes
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how do science tell the age of the solar system
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radiometric dating of the metorites
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why did the solar nebula heat up as it collapsed
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the laws of conversation energy and conservation of angular mmentum ensure that any rotating , collapsing cloud end up as a spinning disk
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what percent of the solar nebula is consisted of hydrogen
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98%
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why do we find general rules and exction the rules and patterns of the planets
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most exception are the results of giant impacts
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based on our current theory the water on earth comes from
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comets that impact earth
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heavy bombardent phase of the solar system lasted
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about a billion years
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