Key Idea.
Section 1
Fast Water Moves More Rock and Soil
The amount of erosion that occurs depends on the energy of the water. Fast-moving water possesses higher kinetic energy than slow-moving water. This high energy gives the water the power to break apart harder rocks and transport larger, heavier sediment.
Therefore, a rushing river will cause more erosion and carve deeper channels than a slow, gentle stream.
Section 2
Water's Energy Moves Particles
Erosion involves the transport of material. The distance and size of the particles moved depend on the water's energy. High-energy currents can carry heavy rocks and scouring sand, which act like tools to further wear away the riverbed.
This ability to move and transport material is what deepens canyons and shapes the landscape.
Section 3
Rivers Carve Canyons Over Time
The formation of a canyon is the result of the combined variables of speed and time. A river acts as a continuous saw, cutting through the Earth.
Through the slow, steady process of removing microscopic bits of rock and transporting them away, the river creates a deep gorge. This demonstrates how small, consistent changes over geologic time result in massive changes to the Earth's surface.
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Section 1
Fast Water Moves More Rock and Soil
The amount of erosion that occurs depends on the energy of the water. Fast-moving water possesses higher kinetic energy than slow-moving water. This high energy gives the water the power to break apart harder rocks and transport larger, heavier sediment.
Therefore, a rushing river will cause more erosion and carve deeper channels than a slow, gentle stream.
Section 2
Water's Energy Moves Particles
Erosion involves the transport of material. The distance and size of the particles moved depend on the water's energy. High-energy currents can carry heavy rocks and scouring sand, which act like tools to further wear away the riverbed.
This ability to move and transport material is what deepens canyons and shapes the landscape.
Section 3
Rivers Carve Canyons Over Time
The formation of a canyon is the result of the combined variables of speed and time. A river acts as a continuous saw, cutting through the Earth.
Through the slow, steady process of removing microscopic bits of rock and transporting them away, the river creates a deep gorge. This demonstrates how small, consistent changes over geologic time result in massive changes to the Earth's surface.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter