Chapter 22 Touring Our Solar System Word List:

Asteroid Asteroid Belt coma Comet Cryovolcanism Dwarf Planet Escape velocity Impact craters Inner planets Iron meteorite Jovian planets Jupiter Kuiper belt

Lunar highlands Lunar regolith Maria Mars Mercury Meteor Meteorite Meteoroid Meteor shower Neptune Oort cloud Outer planets Planetesimals

Plutoids Protoplanets Saturn Scattered disc Scattered disc object Solar nebula Stony-iron meteorite Stony-meteorite Terrae Terrestrial planet Trans-Neptunian Object Uranus Venus