comets
by oliver
what are comets made of?
comets are made of rock, ice and dust.
why comets have tales?
A comet gets it's tail when it gets to close to the sun and the ice and dust melts off the comet making a glimaring blue tail.
where do comets come from
comets come from a big cloud called the Oort cloud that is far beond the orbit of pluto. they are flying around and every once and a while one flys out towards the sun orbiting it for awhile until it bruns up in the sun.
how big are comets
comets are usually 1 to 10 kilomiters big
how fast do comets travel
a comet travels beetwen 42 killomiters per second and 150 million kilomiters per second