Q. What happens on a river bend?
The source of the sediment is typically upstream cut banks from which sand, rocks and debris has been eroded, swept, and rolled across the bed of the river and downstream to the inside bank of a river bend. On the inside bend, this sediment and debris is eventually deposited on the slip-off slope of a point bar.
Q. How does the shape of a river bend change as water flows?
In the inner bend, center, the water moves more slowly, depositing gravel and sand. In the outer bend, right, the water moves more quickly, and the bank is steeper because of erosion.
Q. What is more likely to form on the inside bend of a river where the water flows slowest?
Water on the inner bend is slower, causing the water to slow down and deposit the eroded material, creating a gentle slope of sand and shingle. The build-up of deposited sediment is known as a slip-off slope (or sometimes river beach).
Q. What causes a river to meander?
Meanders are produced when water in the stream channel erodes the sediments of an outer bend of a streambank and deposits this and other sediment on subsequent inner bends downstream.
Q. What are two components of a river’s flow?
“Flow” refers to the water running in a river or stream. There are two important aspects to a river’s natural flow. First, there is the amount of water that flows in the river. Some rivers get enough water from their headwaters, tributaries, and rain to flow all year round.
Q. What are the four factors that affect stream velocity and how will they affect the flow?
The velocity of a river is determined by many factors, including the shape of its channel, the gradient of the slope that the river moves along, the volume of water that the river carries and the amount of friction caused by rough edges within the riverbed.
Q. What are the three methods of sediment transport by streams and rivers?
Sediment transport is usually divided into three types: bed load, saltation, and suspension.
