Properties of Water

What makes water so special? 1

Properties of Water Polar Cohesion Surface Tension Adhesion Capillary Action High Specific Heat Less Dense as a Solid Universal Solvent 1

Water is Polar Oxygen has a partial (-) charge Hydrogen has a partial (+) charge Causes water to be POLAR, like a magnet

Covalent Bond vs. Hydrogen Bond VIDEO

Cohesion Water molecules attracted to each other creating surface tension 1

Surface Tension The tightness across the surface of water caused by cohesion Makes the surface act like a solid 1

Adhesion Water molecules are attracted to other substances such as glass, soil, and plant tissues 1

Capillary Action VIDEO Ability of water to “climb” up against gravity Results from Cohesion + Adhesion EX: Water moving up the roots to the top of the tree VIDEO 1

High Specific Heat Amount of heat (energy) required to raise the temperature of water by 1⁰ C VIDEO WATER = 75°F BEACH = 200°F 1

Water is Less Dense as a Solid Water in a liquid state keeps rebonding and changing its shape Water in a solid states has a fixed shape with space in between making it less dense VIDEO 1

Universal Solvent Water is a universal solvent because it dissolves more substances than any other liquid 1