Rivers As a stream forms it erodes soil and rock to make a channel Over time the stream transports rock and soil downstream making it longer and wider A streams ability to erode is influenced by 2 factors ID: 768863
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Rivers As a stream forms, it erodes soil and rock to make a channel. Over time the stream transports rock and soil downstream, making it longer and wider
A streams ability to erode is influenced by 2 factors 1. Discharge – The amount of water that a river carries in a given amount of time increases during a storm More energy = faster flow = more erosion
2. Load – the materials carried by a stream (sand, pebbles, rocks, etc) The size of streams load is affect by speed
Deposits After rivers erode rock and soil, they deposit their load downstream
Deltas When a river meets a large body of water its current slows Its load is deposited in a fan-shaped pattern called a delta
1. Flood NotesRead pages 219-221 on Floods and floodplains.Take detailed notes for all 3 sections On a separate piece of paper, answer #1 & 6 on page 221. On that SAME paper, do Task #2. 2. River Stages Play around with the map and observe different rivers Find a river somewhere in the United States at each stage. Write down the name of the river and its height : Major Flooding Moderate Flooding Minor Flooding Near Flood Stage No Flooding 3. GW Simulation
River Systems A stream that flows into a larger stream is called a tributary
River Systems River systems are divided into regions
River Systems A watershed is an area or ridge of land that separates waters flowing to different rivers, basins, or seas A watershed is smaller than a river basin
River Systems A river basin sends all of the water falling within it to a central river and out to an estuary or to the ocean.
Topography – determines where water in the watersheds will drain
There are 17 river basins in NC