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Water: Our most important resource

Water: Our most important resource. Milbank High School. Discussion. What are some of the uses of water? What are some ways we are hurting our water supply? How can we improve the water that we have now?. Importance of Water. Constitutes 2/3rds of the mass of most organisms

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Water: Our most important resource

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  1. Water: Our most important resource Milbank High School

  2. Discussion • What are some of the uses of water? • What are some ways we are hurting our water supply? • How can we improve the water that we have now?

  3. Importance of Water • Constitutes 2/3rds of the mass of most organisms • 75% of the Earth’s surface

  4. Importance of Water Con’t

  5. Importance of Water Con’t

  6. Structure • H2O (compound) • Composed of two elements (hydrogen and oxygen) • Two hydrogen atoms and one oxygen atom • Composed of hydrogen and oxygen atoms • H2O is waters Chemical Formula

  7. H H H O O H H H H H O O H O H O H H H H O H O O H H H H H H O O O H H H Liquid Solid

  8. Contamination • Ground water contamination (aquifers) • River water • Lakes • Oceans

  9. Area Water • How are area residents hurting our local water supply? • Are there any naturally occurring instances in which water quality is hurt?

  10. What makes water unique? • High Surface Tension • Volume change when frozen • Ability to change states

  11. Water: Acid or Base? • pH Values • Pure Water: a perfect 7 • Acids: below a 7 • What are some acids? • Bases: above a 7 • What are some bases?

  12. Summary • Water is our most important resource…? • Water has many unique properties • Specific heat • Surface tension • Universal solvent • Transparent • Sources of contamination

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