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science tomorrow
earth science
Question | Answer |
---|---|
star | a huge glowing ball of gas in the sky |
constellation | a group of stars |
stars color | depends on surface tempature |
where is a star born | in a huge cloud of hydrogen and other gases. the clouds called a nubela |
order of stars life | red giant-white dwarf-black dwarf |
what happens when a star starts to run out of fuel | it loses most of its hydrogen |
whats the process of nuclear fusion | hydrogen+helium=Energy in small particles |
galaxy | a huge grouping of stars |
solar system | the sun with clusters of other bodies around it (planets) |
astronamical unit | the average distance between earth and sun |
astronomy | the study of space and objects in and around it |
sprial galaxy | looks like a huge flat circle |
elliptical galaxy | in the shape of an oval |
irregular galaxy | does not have a regular shape |
astroids | made up of rock and metal that rbit around the sun |
comets | made up of ice that orbit around sun |
*fact | a larger planet has a larger amount of gravity |
what galaxy are we in? and what kind is it? | the milky way. spiral galaxy |
whats absolute magnitude | the way we see stars brightness if they were the same distance to earth |
whast apparent magnitude | the brihtness we see from stars |
whats teh closest star to earth | sun |
what do scienctists use to measure distance in space | light year |
nuclear fusion | when 2 or more nuclei join together to make one large nuclei |
light year | the distance that light travels in one year |
magnitude | the brightness of stars |