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