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Long period of dry weather

drought

Gas molecules

Water vapor

The moving and depositing of soil and rock.

sedimentation

Scientists who study the movement and properties of water on and below the earth’s surface.

hydrologists

The wearing away of rocks and soil

erosion

River of ice

glacier

Solid matter such as rocks or earth deposited by water, ice, or wind

sediments

Amount of movement

energy

High and level areas next to mountains with horizontal layers of rock

plateaus

Water found in places such as lakes and streams

Surface water

Natural features of the land’s surface

landforms

Water soaked in the earth’s surface that cannot be seen from space

Ground water

Flat land that has been leveled by erosion or the moving of earth materials

plains

High steeply sloped, and raised areas of rocks on the earth’s surface

mountains

Water droplets that have combined around a particle of dust which

becomes heavier than air, and falls to the earth as rain, snow, sleet, and hail

precipitation

Scientists who study landforms

geologist

The uppermost layer of land

soil

Water in its 3 states moves from one place on earth to another in a continuous cycle

Water cycle

This occurs when water vapor cools in the atmosphere and the molecules change from

gas to liquid

condensation

Changing of water from liquid to gas

evaporation

The course along which water moves

Stream channel

The beginning of a stream or river

Head

A long, low area carved by a stream or glacier with higher areas on both sides

Valley

A deep, steep-walled gorge carved in rock by a stream or glacier

glacier

The point at which water from a river or stream empties into another

body of water, such as a larger stream, lake, or ocean

mouth