Primordial soup is a term that refers to a hypothetical mixture of organic compounds, which is believed to have existed on Earth before the emergence of life. There are several synonyms for this term that have been used by scientists across the years. One of the most commonly used synonyms is "prebiotic soup," which is derived from the fact that this organic mixture is believed to have provided the basis for the development of life. Other synonyms include "chemical evolution," "abiogenesis," or "chemical origin of life." These terms all describe the process by which life may have emerged spontaneously from non-living matter, in the early stages of the planet's existence.