Tuesday, 6 December 2016

Vocabulary Unit 3

  • Water Cycle : It is the process when the water changes its physical state.
  • Fresh water : It is the water found in rivers, lakes, glaciers, groundwater and at the poles.
  • Groundwater : It is the water run and is scored under the ground.
  • Flow : It is the amount of water it carries
  • Basin : It is the area occupied by a river and its tributaries.
  • Tributaries : It is smaller rivers flowing into a large river.
  • Source : It is the place of a river starts.
  • Glaciers : They are masses of ice created by the accumulation of snow.
  • Lakes : They are permanent masses of water which have accumulated inland.
  • Wadis : They are basins in the desert.
  • Rivers : They are permanent currents of water
  • Canals : It is build by human beings, and used to transport water.
  • Reservoirs : They are artificial lakes to store water.
  • Water supply : It is the water in reservoirs and is offered to people and industries.
  • Dams : They are build of human beings used to produce electricity.
  • Hydroelectric power station : It is a station used to produced electricity through the water.
  • Salinity : It is the amount of salt with containing the oceans and seas.
  • Warm current : These currents are produced when the temperature of a current is higher than the water around it.
  • Cold current : These currents are produced when the temperature of a current is colder than the water around it.
  • Tides : They are the diary rise and fall of the water level. They are caused by the gravitational forces of the Moon and the Sun.
  • Waves : They are undulations of the surface of the water produced by wind.
  • High tide : This tide is produced when rise the level of sea.
  • Low tide : This tide is produced when falls the level of sea.
  • Lagoons : It is smaller lakes.
  • Inland seas : It is a saltwater lake.
  • Ocean currents : They are large masses of water, similar to rivers, which circulate through oceans.
  • Aquifers : It is forms when the water can´t pass through the impermeable rocks
  • Springs : It is forms when groundwater finds a way to the surface. They can be cold or hold water.
  • Drinking water : It is the water you can drink. Groundwater is valuable because there are drinking water.
  • Icebergs : It is a floating mass of ice.
  • Consumption : It is the fresh water which use the human being for life. It is only 0.014%.
  • Droughts : It is shortage of water.
  • Floods : It is excess of water
  • Water Pollution : It is large amount of materials are added to a body of water.
  • Acid rain: It contains harmful chemicals such as sulfur and nitrogen. These chemicals are released into the atmosphere as gases.

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