A ball of ice and rock whose orbit is usually a long, narrow ellipse.

• Comet
• Meteor
• Planet
• Moon

I am a rock entering a planet's atmosphere.

• meteor
• planet
• asteroid
• comet

The ________ belt between Mars and Jupiter

• Comet
• Asteroid
• Meteor
• Star

When a meteor hits Earth, what is it called?

• meteorite
• comet
• asteroid

A large round pit caused by the impact of a meteoroid.

• Earth
• Crater
• Pit
• Hole

The constant movement of the Earth around the sun.

• Revolution
• Rotation
• Axis

When the earth spins on its axis.

• Revolution
• Rotation
• Axis

Sometimes I am called a "dirty snowball". I have a hydrogen cloud, coma, and a nucleus. I am invisible except when near the sun. What am I?

• Asteroid
• Star
• Meteor
• Comet