all the stuff bout astronomy..well kinda
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the first step of the birth of a star? | nebula-cloud of gas and dust
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| Whats the second step of the birth of a star? | gas and dust clump together due to gravity (shock waves from a supernova explosion)
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| whats the 3rd step to the birth of a star? | gas and dust pulll together into a ball (attracts more particles)becomes hotter and hotter til it glows
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| whats the 4th step to the birth of a star? | grows hotter and hotter for mills of yrs until the star is made
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| What are the things that a sunlike star turns into in the process of dieing? | sun like star->red giant->planetary nebula->white dwarf->black dwarf
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| how many times larger is a huge star to a sun like star? | 1.5-3 times larger
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| whats the sequence of a huge stars death? | huge star->red supergiant->supernova->nuetron star
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| whats the sequence of a giant star? | giant star->blue or red supergiant->supernova->black hole(light cant escape gravitys pull)
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| whats an asteroid? | chuncks of rock in space that never became part of a planet
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| whats a meteoroid? | a small asteroid
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| whats a meteor? | meterooid thats in the earths atmosphere..leaves a streak in the sky
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| whats a comet? | chunks of rock and ice w/ two tails
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| what are the tails of a comet called? | ion and dust
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| what is a galaxy? | a large group of stars , gas and dust held together by gravity
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| what are some things about galaxies? | hav several mill to trill stars & range from 11thousand-hundred thousands of lite years
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| what are the three types of galaxies? | spiral,elliptical and irregular
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| What are some characteristics of spiral galaxies? | spiral arms,milky way is one, normal or barred,20% of galaxies are spiral
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| what are some characterisitics of elliptical galaxies? | football shaped, oval shaped,most common galaxy, 60% of galaxies,elipse shaped,old,not much gas and dust
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| what are some characteristics of an irregular galaxy? | smaller,20%, lots of gas and dust,new stars lots forming
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| what are the types of stars? | red giant & supergiatns,main sequence,blue supergiants and white dwarfs
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