Relier Pairs Mystery Writing Glossary AsteroidsVersion en ligne vocab par Denise Kesel 1 diameter 2 asteroid 3 velocity 4 orbit 5 meteor 6 impact 7 deflect 8 collision 9 atmosphere to cause an object to change direction after hitting something a rocky object in outer space one object hitting into another object the force of one thing hitting another the distance across an object a small object from space that enters the Earth's atmosphere. They often appear as glowing streaks in the sky or "Shooting Stars" circling another object, like the Moon around the Earth speed air that surrounds a planet