Definitions
clouds and dust form a fuzzy outer layer.
what is a coma?
loose collections of ice,dust and small rocky particles whose orbits are usually very long,narrow ellipses
comet
a chunk of rock or dust in space.
meteorid
True or False Asteroids almost always look the same as one another.
false
Comets are made of these things.
What is ice, dust, and small rocky particles.
friction with the air creates heat and produces a streak of light in the sky.
meteor
the solid inner core of a comet.
Nucleus
comets tail
comet approaches the sun and heats up, some of its gas and dust stream outward,
meteoroids that pass through the atmosphere and hit Earths surface.
a doughnut-shaped region that extends from beyond Neptune's orbit to about 100 times Earths distance from the sun.
Kuiper belt
comets head
true or false: the craters on the moon were formed by meteoroids
true
a spherical region of comets that surrounds the solar system out to more than 1,000 times the distance between Pluto and the sun.
Oort cloud
Can a comets tail be more than 100 million kilometers long?
Yes
True Or False: if the meteoroid is large enough, it may not burn up completely.
True