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• water facts • water facts 2 Water Facts • Only 3% of all the water on Earth is freshwater (97% is ocean water) • Water can dissolve more substances than any other liquid, including sulfuric acid • 30% of all freshwater is underground • The water found in lakes, streams, rivers, swamps and ponds makes up only 0.3% of the world’s fresh water • 68% of all fresh water is trapped in glaciers Water Facts • Approximately 70% of the human body is water • The average American uses 100 gallons of water per day • Approximately 400 billion gallons of water are used in the United States daily • Americans use more water each day by flushing the toilet than showering or any other activity • Europeans use 50% less water than Americans Water Facts • More than 25% of bottled water comes from the same place that tap water comes from • It takes 6.5 years for an American household to use the amount of water that it takes to fill an Olympic swimming pool (660,000 gallons) • It takes 7.5 years for an American household to use the amount of water that falls over Niagara Falls in 1 minute (750,000 gallons) • http://www.allaboutwater.org/water-facts.html WHERE IS ALL THE WATER?? Where is all the water?? • Water covers 71% of the earth • 97% of all of the water on earth is in the OCEANS • 3% of all water on earth is FRESHWATER, and only 1% of all the freshwater is accessible by humans Where is all the water?? • • • • Reservoir: Biological Description: All of the water in every living organism Percentage: 0.0005% Measurement = 2 drops Where is all the water?? • Reservoir: Atmosphere • Description: Clouds, water vapor, ice crystals • Percentage: 0.001% • Measurement = 4 drops Where is all the water?? • Reservoir: Rivers and Streams • Description: snow and rain that flows to the ocean • Percentage: 0.003% • Measurement = 11 drops Where is all the water?? • • • • Reservoir: Inland seas Description: all of the saltwater lakes on earth Percentage: 0.006% Measurement = 21 drops Where is all the water?? • • • • Reservoir: Freshwater lakes Description: All freshwater lakes and dams Percentage: 0.007% Measurement = 27 drops Where is all the water?? • • • • Reservoir: Groundwater Description: all of the water in aquifers underground Percentage: 0.7325% Measurement = 138.5 mL Where is all the water?? • Reservoir: glaciers and ice caps • Description: Water frozen near the poles • Percentage: 2% • Measurement = 378 mL Where is all the water?? • • • • Reservoir: oceans Description: All of the water in all of the oceans Percentage: 97.25 % Measurement = All of the water left in the tank Distribution of Water on Earth All the Freshwater on Earth