Life as we know it requires liquid water, but why? The answer is in the same water molecule.

• First, water must be liquid to allow the chemicals from entering cells or leaving them. Frozen water or steam not have exactly the same properties as water in liquid form.
• Second, the proteins act as catalysts within the cells and require
• Third, compared with other liquids, water has some unique properties that make it essential for life.

1. Water remains liquid over a wide temperature range, allowing it to endure life with atmospheric and climate changes.
2. In addition, water has the ability to conserve energy and moderates the climate.
3. Unlike other molecules, water fleet to reach freezing. This isolates the water remaining below, which remains in liquid form and sustains life.
4. water molecules are “polar”, with a positive and a negative side. Each end of the water molecule attracts other charged particles. These polar,  substances such as sugar or salt, essential for living cells, they dissolve easily in water, while nonpolar substances such as oils and lipids that form membranes, do not dissolve easily.

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