Alluvium: material, including silt, carried and deposited by
Cataract: series of rapids or waterfalls on a large
Channel: deeper part of a river; usually more navigable.
Confluence: place where two rivers come together.
Dam: structure designed to hold back river water,
creating a reservoir.
Delta: fan-shaped area of sediment at mouth of a river.
Drought: long period with little or no rainfall.
Erosion: process of wearing away.
Flood: when water flows across land that is normally dry.
Flow: movement and speed of water.
Headwater: where a river begins.
Irrigation: water used for farmland.
Meander: stretch of river that changes course many times.
Mouth: end of a river.
Recreation: refreshment of a personís mind and body.
River: naturally winding water pathway.
Sand bar: submerged ridge of sand or gravel.
Tributary: stream or river that feeds into a larger