Primordial Soup Theory: This theory suggests that life began in a warm pond or ocean as result of the combination of chemicals from the atmosphere and some form of energy to make amino acids, which would then evolve into all the species.
Miller-Urey Experiment: An experiment that simulated hypothetical conditions thought at the time to be present on early Earth to test if such conditions could lead to life.
Organic Compounds: Compounds containing carbon that are found in living organisms.