The cool properties of water

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The cool properties of water
Water Clip
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Important Properties of Water

• Universal Solvent
• Unique Physical State
• High Heat Capacity
• Surface Tension
• Density

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Universal Solvent

• Solvent- capable of dissolving another substance.
• Universal because of its polarity
• charged ends of the water molecules are attracted
  to the charges on other molecules.
• Enables water to carry essential nutrients in
  living organisms

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Unique Physical State

• Water molecules are the only substance on Earth
  that exist in all three physical states of
  matter solid, liquid, and gas.

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Heat Capacity

• Specific heat is the amount of energy required to
  change the temperature of a substance
• Water has a high heat capacity
• can absorb large amounts of heat energy before it
  begins to get hot.
• Water's high specific heat allows for the
  moderation of the Earth's climate and helps
  organisms regulate their body temperature more
  effectively

FYI Water has the second highest specific heat
capacity of all known substances. (Ammonia has
the highest specific heat.)
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Surface Tension

• Highest surface tension of all common liquids.
  Because water is polar it is sticky. Molecules
  of water want to stick to themselves.
• Property causes water to
• stick to the sides of vertical
• structures despite gravity's
• downward pull. (adhesion)
• allows for the formation of
• water droplets and waves
• (cohesion)
• allows plants to move water (and dissolved
  nutrients) from their roots to their leaves
  (capillary action-adhesion)
• and the movement of blood through tiny vessels in
  the bodies of some animals (adhesion).

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Density

• Water is the only substance on this planet where
  the maximum density of its mass does not occur
  when it becomes solidified.