Facts about WATER

Water

The most common liquid on Earth, covering 3/4 of the Earth's surface and making up 70% - 95% of the weight of living things.

High Surface Tension

Water's property due to weak hydrogen bonds, allowing some insects to walk on it and stones to skip on its surface.

Capillary Action

Water creeping up thin tubes like plant roots and stems, known as xylem.

Adhesion

Water molecules sticking to other substances, like water sticking to a wall.

Cohesion

Water molecules sticking to other water molecules, creating surface tension and weak hydrogen bonds.

Evaporative Cooling

Water's ability to cool by evaporation, where the fastest moving molecules leave, lowering the average temperature.

High Specific Heat

Water's resistance to temperature change, needing a lot of energy to heat up, affecting body temperature and stability.

Water Expands When It Freezes

Unlike most substances, water expands when freezing, allowing ice to float and insulate bodies of water, causing erosion and enabling ice fishing.

Polar Molecule

Water's polarity due to an unequal charge distribution in its molecules.