Comprehension Check 4.9, P. 229
band of cometlike objects located beyond the orbit of Neptune
Kuiper belt
band of asteroids located between the orbits of Mars and Jupiter
asteroid belt
little "planets" ranging in size from a few hundred miles across to as small as a house
asteroids
an asteroid-sized chunk of rock, dust, and ice
comet
a meteoroid that enters earth's atmosphere
meteor
occurs when earth passes through a cluster of meteoroids
meteor shower
a meteoroid that hits the earth
meteorite
pieces of space debris that are smaller than the smallest asteroid
meteoroids
group of asteroids found in the inner solar system, many of which cross paths with the earth
near-earth asteroids
three parts of a comet
nucleus coma tail
the amount of time it takes for a comet to complete its orbit
period
