fill in the blank
this is a large collection or stars, gas and dust that is held together by gravity
what is a galaxy
the sun is a star
what is true
does the universe have a structure
what is astronomers are not sure
this is the largest star closest to earth
what is the sun
this planet is considered a dwarf planet
what is Pluto
space and all the matter and energy in it is called the ________
what is the universe
stars are made mostly of nitrogen and oxygen
false
how many galaxy's are in the universe
what is 10 or more
whis is what stars are made of
what is hydrogen and helium
is the sun a planet or a star
what is a star
a ______ consists of a star and all the bodies that orbit around it
what is a planet
if two stars have the same apparent magnitude they are the same distance from earth
what is false
astronomers use this to measure time in space
what is a light year
colors stars can be
what is white, blue, yellow and red
is the moon a star
what is it is a rock
a ____ is a large celestial body that is exposed of gas and emits light
what is a star
red stars have higher surface temperatures than blue stars
what is false
why does the universe not have a structure
what is no one knows
stars spend most of there life here
what is the main sequence
this is the biggest planet
what is Jupiter
a _______ ____ is a small incredibly dense ball of closely packed neutrons
what is a neutron star
some stars are about as small as earth
what is true
how many clusters can be in galaxy's
what is several thousand
are red stars hot and blue stars cold
what is yes
these are our the main planets
what is Mercury, Uranus, earth, Venus, Jupiter, Mars and Saturn