Natural springs form when pressurized aquifer or groundwater flows onto the land surface. Springs may form in various landscapes, including a valley bottom, the side of a hill and in any sort of rock. Springs are classif... More »

Water comes from three main natural sources: rain water, underground water and surface water. Hidden water trapped in different forms such as in polar ice caps and glaciers is another important source of water. More »

A natural levee is formed when the movement of water pushes sediment to the side of rivers and creeks. This creates a slight elevation on the sides, making it taller than the river bed. Materials that make up a natural l... More »

Hot springs are created as water seeps into the earth's surface and is heated geothermally. The earth's pressure forces the heated water to ascend to the surface as a hot spring. More »

Nearly 3.8 billion years ago, temperatures on Earth cooled below 100 degrees Celsius for the first time, allowing water, which existed on the planet in gaseous form, to condense into rain and collect on the planet's surf... More »

The clues used by scientists to find groundwater are the topography of a location, its vegetation and the location of wells. A scientist looking for water, or hydrologist, is generally concerned with finding large quanti... More » Science Earth Science Landforms

Beaches are mainly created from tides and ocean currents that come up over the land. The repetitive motion of the tides coming in and going out causes weathering and erosion of the land, and it deposits sand, shells and ... More »