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Rock Cycle

Across
Igneous rock that cools quickly; smooth
This theory states that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes
Law that states that any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom
The type of rock that is formed by heat, pressure, and chemical changes
The type of rock that is formed by fire
Magma that breaks through Earth's crust
A method of dating by determining the relative proportions of particular radioactive isotopes present in a sample.
Study of the earth
Down
Opening in the earth's crust where lava, ash, debris, and gases are forced out
Igneous rock that is cools slowly; rough
Melted rock underneath the earth's surface
Plates that glide over the mantle, make up the earth's crust
Any remains or traces of an ancient organism
The type of rock formed by settling of rock fragments
Method of dating by determining the relative order, without necessarily determining the absolute age