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.
Rock and Minerals
Metamorphic Rocks: Heat, Pressure and Metamorphism
If you take an existing rock and add immense heat or pressure to it, the rock becomes soft and pliable like cookie dough transforming into metamorphic rocks.
How Do Sedimentary Rocks Form?
Sedimentary rocks form from two key processes. First, compaction squeezes material together. Second, cementing glues the squeezed material together.
How the Rock Cycle Recycles Earth’s Crust
If you could speed up time, you would see rocks cycling from within the planet. Like a well-oiled machine, rocks are igneous, sedimentary and metamorphic.
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?