Rock Types

rock is formed by heat and pressure deep below the crust of the earth.

______ rock is formed from volcanic lava or magma

_________ rock is formed when layers of sediment and organic material are pressed and cemented together

Obsidian and pumice are types of __________ rock

Slate and marble are types of ________ rock

Limestone and conglomerate are types of _______ rock

a hard natural substance made of one or more minerals is called a _______. It sometimes contains organic materials

Geologists classify rocks according to how they_______

Most of the rocks formed during the Flood were________

A rocklike substance that forms from decayed plant matter is called _______