Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Water is a colorless, odorless, and tasteless liquid that is essential for life. It is composed of two hydrogen atoms bonded to one oxygen atom (H2O).
Related terms
Taste buds: Specialized sensory receptors located on the tongue that detect different tastes, including saltiness.
Osmosis: The process by which water molecules move from an area of lower solute concentration to an area of higher solute concentration through a semipermeable membrane.
Dilution: The process of reducing the concentration of a substance in a mixture by adding more solvent (in this case, water) to it.