Comets
Asteroids
Meteors
Meteor Showers
100
What were comets formed out of?
Icy material and some rocky material
100
What are asteroids made up of?
Rock, some are made up of metal.
100
What is a meteor?
A bright trail or streak that appears in the sky.
200
How are comet tails formed?
When a comet goes towards the Sun and some of its ice evaporates
200
What are almost all asteroids a part of?
The Main Asteroid Belt
200
What is a fireball?
A brighter-than-usual meteor
200
Do meteors in meteor showers usually reach Earth?
No, it is very rare.
300
What ate believed to be the oldest and best-preserved material in the solar system?
Comet nuclei
300
What happens when asteroids come into Earth's atmosphere?
They burn up into what we call shooting stars.
300
How far above Earth do meteors disintegrate?
At about 31 to 52 kilometers above Earth
300
What is it called when meteor showers produce a really large amount of meteors?
Meteor storms or outbursts
400
Name two places that comets come from.
The Oort Cloud and the Kuiper Belt
400
Where is the Main Asteroid belt?
Between Mars and Jupiter
400
Where do meteors become visible from Earth?
30 to 70 miles above Earth
400
How any meteors do meteor showers produce per hour?
More than 1,000
500
What differentiates comets and asteroids?
A comet has a more eccentric orbit and a different chemical nature.
500
How many asteroids exist that are larger than one kilometer in diameter?
1.1 to 1.9 million
500
Where do meteors occur?
In the mesosphere
500
What is a radiant point?
The point where all meteors in meteor showers seem to emerge from.
M
e
n
u