2 Why is water important? All living things depend on it. 60% of human body depends on it.Helps transport in the body.Regulates body temperature.Photosynthesis in plants.Light+CO2+H2O→C6H12O22+O
3 Specific HeatHigh specific heat causes large bodies of water to heat up and cool down slowly.Stable temperature for aquatic organisms
4 Water on EarthWater in the air controls the rate at which air temperature changes.70% of earth’s surface is water, 3% is fresh water (glaciers, snow, rain), and 1% is lakes, rivers, swamps, and atmosphere.Where is the rest of the water?hydrosphere- all water on, below, and in the earth’s atmosphere.Ground water- water below the surfaceWater in atmosphere is water vapor, clouds, ice crystals, and snow.
5 Water changes statesEvaporation- the process of a liquid changing to a gas at the surface of a liquid.Condensation- process of a gas changing to a liquid.The water cycle- process in which water continually moves throughout the hydrosphere.Sun and gravity drive the water cycle.Transpiration- evaporation of water from plants (gets water from the ground then released it through the leaves)Runoff- water that runs downhillGround water- water in the groundReservoir- storage area for water