Rock and Minerals

How Was the Grand Canyon Formed?

How Was the Grand Canyon Formed?

Like a stack of pancakes, younger rock layers pile on top of older layers. We use the law of superposition to reveal Earth’s age and Grand Canyon geology.

How Do Sedimentary Rocks Form?

How Do Sedimentary Rocks Form?

Sedimentary rocks form from two key processes. First, compaction squeezes material together. Second, cementing glues the squeezed material together.

What Are the 3 Types of Rocks?

What Are the 3 Types of Rocks?

Earth is covered with these 3 types of rocks are: (1) sedimentary rocks (2) metamorphic rocks and (3) igneous rocks. How they are different from each other?