Geography (water)

• As water vapor rises, it cools and condenses into water droplets. Clouds are formed.
• The water cycle is the continuous movement of water between the Earth's surface, atmosphere, and oceans.
• Water in the oceans, rivers and lakes is heated and evaporates.
• When water droplets become to heavy, they fall as precipitation.
• Some precipitation is caught by plants before reaching the ground. This is called interception.
• Water in plants turns into water vapor through transpiration.
• Some precipatation flows on the ground surfaces as surface runoff.
• Some precipitation infiltrates into the soil and becomes groundwater. This is called infiltration.
• A river basin also called a drainage basin, is the area of land drained by a river and its tributaries. It is made up of different parts.
• Parts of a river basin: Main stream, a stream that flows directly into the sea.
• River source: the starting point of a river.
• Tributary: a stream that flows into a larger stream or the main river.
• Watershed: an area of high ground or a ridge that seperates two neighbouring river basins.
• River mouth: the place where the main river enters the sea.
• The Amozon Basin is the largest basin in the world.
• Water resources refer to the freshwater that is avaliable for human use. Freshwater is scarce.
• Freshwater makes up of 3% of the Earth's water. 0.3% surface water which are 2% rivers, 11% swamps and 87% lakes.