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| The flash of light across the night sky that records the entry of a meteoride into earths atmosphere is called? |
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| the comets are thought to originate in a bond possibly 2light years from the sun called the? |
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| the galaxy to which we belong is called the? |
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| the force that caused the segregation of the cosmic dust clooud from which planets formed is called the? |
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| a stage in evolution of a star |
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| the flux of high energy particles that is emitted by a star |
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| the plane in which the terrestrial and jovian planets orbit the sun |
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| the streak of light that records the penetration of a meteoroid into the earths atmosphere |
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| the layer that makes up most of earths volume |
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| the rock that makes up the oceanic crust |
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| the outermost reaches of the solar system |
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| arrange the terrestrial and jovian planets in order from the sun |
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| mercury, venus, earth, mars, jupiter ,saturn, uranus, neptune |
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| what is meant by the big bang? |
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| the big bang begins with the theory that all matter was condensed into what Lemaitre callwd the primeval atom. then the atom exploded, and the matter expanded into space |
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| after a cloud of matter rushed outward into space, eddy currentd formed, and as they rotated faster, the hydrogen and helium atoms were contracted and compressed into shrinking core. the temperature and pressure witin the core were so high that hydrogen and helium, giving off energy such as heat and light |
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| what fuel is being burned in the cores main sequence stars? |
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| by elements that they absorb and their temperature |
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| stars live by converting hydrogen to helium. as the supply of hydrogen dwindles, stars begin to die out like any other fire deprived of fuel. |
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| what elements are formed during the red giant stage of star evolution? |
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| helium begins to be chemically converted into carbon in the core. |
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| what elements are formed during novas or supernovas? |
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| heavy elements such as those that make up rocks and minerals are formed |
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| what is cosmic dust and how does it form? |
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| it is composed of particles in space which are few molecules to 0.1mm size |
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| what unit is used to measure distance in space? |
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| planest form from the sun, it caused solar wind that drove the lighter elements into the colder out of reaches of the orbiting cloud while the denser materials remained behind. then eddy currents caused small particles to aggregate into the planetesimals, which continued to grow larger. |
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| the difference between the Terrestrial and Jovian planets? |
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| the terrestrial planets are the four planets closest to the sun, they share many characteristics with earth. the jovain planets. the jovian planets are the next four planets they are made up of frozen gas. |
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| which is the larest planet? |
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| why does venus have the higest surface temperature? |
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| due to an excessive greenhouse effect caused by the high carbon dioxide content(96%) of the atmosphere which absorbes and retains heat that otherwise would be radiated into space. |
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| what evudence is there that mars once had an atmosphere smiliar to that found on earth? |
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| mars has canali, which in english means channels. life does not exist without water. |
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| why is pluto not considered to be one of the originally formed planets? |
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| its highly eliptical orbit, its orbital path outside the eliptical and its small sized compared to the jovian panets. |
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| the difference between meteorides and comets? |
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| comets seem to be stationary in the sky at any moment and will only be seen to move one horizon to the next over a period of days while a meteoride will move rapidily through the sky and disappear within a matter of second |
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