Sediment is transported in water (rivers, the sea or currents in gutters) in solution, suspension, by saltation (bouncing along) and by traction (rolling or sliding along). As the sediment is moved along the grains bump into one another and bump against the river or sea bed. They gradually become ground down or eroded; any sharp edges are worn away and the grains become more rounded and smaller.
More activities about how sediment is transported can be found on our website.
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