the portion of the earth that consists of all the water in all of its forms, including oceans, glaciers, rivers, lakes, groundwater, and water vapor

the portion of the hydrosphere that is frozen, including all of the snow and ice on lan, plus all of the sea and like ice

the relatively thin layer of gases that form Earths outermost layer

the parts of the earth that contain living organisms

the ability to do work or cause change

the shape of the land determined by elevation, relief, and landforms

a feature on the surface of the earth, such as a coastline, dune or mountain.

a landform with high elevation or high relief

a line that forms the boundary between the land and a ocean or a lake

a hill of sand piled up by the wind

a process in which mapmakers determine the distance and elevations using instruments and principles of geometry

a landform made of sediment that is deposited where a river flows into an ocean or lake

a natural stream of WATER that flows into another body of WATER such as an OCEAN, LAKE, or another body of WATER

The continual movement of water among Earth's atmosphere, oceans, and land surface through evaporation, condensation, and precipitation.

The process by which the molecules at the surface of a liquid gain enough energy to turn into a gas.

the process by which water is lost through a plants leaves

the change in state from a gas to a liquid

Any form of water that falls from clouds and reaches Earth's surface as rain, snow, sleet, or hail.

The land area that supplies water to a river system.

A hole sunk into the ground to reach a supply of water on Earth.

an underground layer of rock or sediment that holds water