Hydrologic cycle: Powered by solar energy, Earth's Water is constantly moving among the hydrosphere, the atmosphere, the solid Earth, and the biosphere.

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Presentation transcript:

Hydrologic cycle: Powered by solar energy, Earth's Water is constantly moving among the hydrosphere, the atmosphere, the solid Earth, and the biosphere. This unending circulation of Earth's water supply is called the hydrologic cycle.

Stream/River Erosion & Deposition

A river is simply a LARGE stream!! What is a Stream/River? A stream is a moving body of water that eventually connects to an ocean A river is simply a LARGE stream!!

River Formation As water in the newly formed river begins to flow, the river path may not be well defined Over time, it will carve out a stream channel: a narrow pathway cut into soil or rock As more water flows through the stream channel, it will deepen and widen through erosion

Which river has a greater velocity? Stream / River Characteristics Velocity – how fast or slow the river is moving. This determines the rivers ability to erode sediments Which river has a greater velocity?

Stream / River Characteristics 2. Gradient – the slope or steepness of the river The steeper the gradient, the more energy

Stream / River Characteristics 3. Discharge – the amount of water moving by a certain point of the river in a set time The Amazon River in South America has greatest discharge 212,400 m3/s Mississippi River in USA has 7th greatest discharge at 17,300 m3/s

Stream / River Characteristics 4. Stream Channel – the course that the water flows in a river