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The Moon1
Here are some basic terms used for describing craters.
Question | Answer |
---|---|
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. |