TED-Ed: How polarity makes water behave strangely - Christina Kleinberg

The video explains why water is unique due to its polarity, which results in properties like cohesion, adhesion, and hydrogen bonding. These properties allow insects to walk on water and ice to float, enabling aquatic life to survive in winter. Water's polarity is due to the unequal sharing of electrons between oxygen and hydrogen atoms, forming polar covalent bonds. This polarity leads to hydrogen bonds between water molecules and other polar substances, contributing to water's life-sustaining characteristics.

Explain the difference between cohesion and adhesion in the context of water.

What role does water's polarity play in its unique properties that are essential for life?