| A | B |
|---|
| rock | a naturally occuring solid mixture of one or more minerals of organic matter |
| composition | The minerals and organic matter a rock contains determine the makeup,of that rock |
| texture | the quality of a rock that is based on the sizes,shapes,and positions of the rock's grains |
| intrusive igneous rock | When magma does not reach Earth's surface,it cools in large chambers,in cracks,or between layers,coarse-grained texture |
| extrusive igneous rock | that forms when lava erupts oe extrudes onto Earth's surface is common around the sides and bases of volcanoes |
| clastic sedimentary rock | forms when sediments are buried,compacted,cemented together by calcit or quartz |
| chemical sedimentary rock | forms when water,usually seawater,evaporates.Most water contains dissolved minerals |
| organic sedimentary rock | forms from the remainsor fossils of once living plants |
