Presentation on theme: "TRUE OR FALSE 75 % of the earth is covered with water."— Presentation transcript:
1 TRUE OR FALSE75 % of the earth is covered with water.97 % of earth’s water is in the oceans.All of the earth’s water can be used as drinking water.5 % of the world’s fresh water is frozen in the polar ice caps.Water boils at 212 degrees FahrenheitA person can only live without water for one dayWe are drinking the same water that the dinosaurs drank.
2 Are you drinking the same water a dinosaur drank?
4 EVAPORATIONEvaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapour or steam which rises in to the air.TRANSPIRATIONDo plants sweat? Kind of. Transpiration is the process by which plants lose water from their leaves. The water rises in to the air.
5 CONDENSATIONWater vapour in the air gets cold and changes back into liquid, forming clouds. This is called condensation.PRECIPITATIONPrecipitation occurs when so much water has condensed that the air cannot hold it anymore. Water falls to the earth in the form of rain, hail, sleet or snow.
7 SATURATION EVAPORATION TRANSPIRATION HYDROLOGY PERCOLATION GROUNDWATER Movement of water in to the soil from the surfaceEVAPORATIONWater stored in rocksTRANSPIRATIONWhen the soil is full of moistureHYDROLOGYMost water returns to the sea by running overland.PERCOLATIONWater vapour changes back to water and forms as water droplets which are visible as clouds.GROUNDWATERThe study of waterINFILTRATIONMoisture falls to the earth (rain, snow, hail)PRECIPITATIONThe transfer of water from plants to the air as gas.SURFACE RUN OFFMovement of water into underlying rocks.CONDENSATIONTransfer of water from the sea to the air
8 TASK:Now fill in your own hydrological cycle. Make sure that you include the following words.EVAPORATION2) CONDENSATION3) TRANSPIRATION4) PRECIPITATION5) COLLECTION IN SEAS AND RIVERS