Estuary- the part of the mouth or lower course of a river in which the rivers current meets the seas tide
Gulf- a part of an ocean or sea that extends into the land
Harbor- a deep body of water that protects boats near land
Marsh- type of wetland with soil that is rich in minerals
Mesa- flat topped mountain or hill
Mid-ocean ridge- an elevated region with a Central Valley on an ocean floor at the boundary between two diverging tectonic plates where new crust forms from upwelling magma
Peninsula- an area of land almost completely surrounded by water except for an isthmus connecting it with the mainland
Plateau- area of raised land that is flat on top
Reservoir- a natural or artificial place where water is collected and stored for use
Rift Valley- an elongated valley formed by the depression of a block of the earths crust between two faults or groups of faults of approximately parallel orientation
Strait- a narrow channel connecting two bodies of water
Valley- an area drained by a river and it’s tributaries
