Geology
Erosion, Weathering, and Soils
The Pedosphere: Soil on Earth
The pedosphere is like the “skin of Earth”. Just like your skin, it has a thin outer surface. It also has pore spaces and dries out without enough moisture.
Inside Earth
Inside Earth: The Crust, Mantle and Core
All planets have layers. Inside Earth, we have a crust, core and mantle. Imagine a team of drillers who set out to drill a hole to the other side of Earth.
Land Surface
5 Sources of Alternative Energy
The world is rapidly transitioning towards a clean energy future. We can switch to alternative sources of energy to fuel our cars and homes.
Milestone Events
Minerals and Rocks
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.
Plate Tectonics
Geologic Timeline
Earth Timeline: A Guide to Earth’s Geological History and Events [Infographic]
Since Earth’s creation, oceans, continents and life have emerged. From evolution to extinction, here are the geological events and history of Earth timeline
Volcanoes
What is a Shield Volcano?
The name “shield volcano” originated from its Roman shield-like shape. They are broad, flat and can stretch hundreds of miles wide like Mauna Loa in Hawaii.
