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The Moon1

Here are some basic terms used for describing craters.

Anorthosite Rock of aluminum and silicates found on the moon.
Asteroid Small, rocky world. Most asteroids are between the orbits of Mars and Jupiter.
Breccia Rock made from pieces of rocks formed earlier.
Carbonaceous Chondrite Stony meteorite containing chondrules and volatiles.
Chondrite A stony meteorite containing chondrules.
Chondrule Round, glassy part of meteorite made from silicates.
Ejecta Pulverized rock scattered by impacts on an object's surface.
Mare Lava flows on the surface of the moon. Plural, maria.
Meteor Small rocks or sand making a bright trail through the sky as it burns in the atmosphere.
Meteorite A meteor that has landed on the Earth.
Rays Ejecta from impacts that spreads out away from a crater.
Rilles Channels in the lunar surface.
Volatiles Carbon compounds, frozen gas and other materials that when heated vaporize.
Created by: chotik1