Chemical substances may be combined or converted to others by means of chemical reactions. Forms of energy, such as light and heat, are not matter, and are thus not substances in this regard.
Halophiles are organisms that thrive in high salt concentrations. They are a type of extremophile organism. The name comes from the Greek word for salt-loving. While most halophiles are classified into the Archaea domain, there are also bacterial halophiles and some eukaryota, such as the alga Dunaliella salina or fungus Wallemia ichthyophaga. Some well-known species give off a red color from carotenoid compounds, notably bacteriorhodopsin.
Indigo children, according to a pseudo-scientific New Age concept, are children who are believed to possess special, unusual and sometimes supernatural traits or abilities. The idea is based on concepts developed in the 1970s by Nancy Ann Tappe and further developed by Jan Tober and Lee Carroll.ndigo children, according to a pseudo-scientific New Age concept, are children who are believed to possess special, unusual and sometimes supernatural traits or abilities. The idea is based on concepts developed in the 1970s by Nancy Ann Tappe and further developed by Jan Tober and Lee Carroll.