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Review of Properties of Water and Water Potential. FILL IN YOUR CIRCLE WITH WORDS & PICTURES. Properties of Water. PAIR & SHARE. Properties of Water. ADD HOW THE PROPERTY IS IMPORTANT TO LIFE. High Specific Heat. Ice Floats. Cohesion. Properties of Water. Adhesion. Surface Tension.

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Presentation Transcript
slide3

PAIR & SHARE

Properties of Water

slide4

ADD HOW THE PROPERTY IS IMPORTANT TO LIFE

High Specific Heat

Ice Floats

Cohesion

Properties of Water

Adhesion

Surface Tension

Versatile Solvent

High Heat of Vaporization

slide5

High Specific Heat

Ice Floats

Cohesion

Properties of Water

Adhesion

Surface Tension

Versatile Solvent

High Heat of Vaporization

water properties
Water Properties
  • Polarity of water results in H-bonding
    • Water’s special properties
  • Organisms depend on cohesion of water
    • Pull water up plant vessels
    • Surface tension
  • Water moderates temperatures on earth
    • High specific heat
    • Evaporative cooling/ high heat of vaporization
  • Ice floats
    • Lakes and oceans don’t freeze, life goes on under ice
  • Water is the solvent of life
    • Dissolves charged/ polar substances
water potential
Water Potential
  • Water potential –
    • Potential energy of water molecules
    • Tells you which direction water will move
    • Water moves from higher to lower (more negative) water potential
slide12
Many mammals control their body temperature by sweating. Which property of water is most directly responsible for the ability of sweat to lower body temperature?
  • Water’s change in density when it condenses
  • Water’s ability to dissolve molecules in the air
  • The release of heat by the formation of hydrogen bonds
  • The absorption of heat by the breaking of hydrogen bonds
  • Water’s high surface tension
slide13
The bonds that are broken when water vaporizes are
  • Ionic bonds
  • Bonds between water molecules
  • Bonds between atoms within individual water molecules
  • Polar covalent bonds
  • Nonpolar covalent bonds