Encyclopedia of Earth: Predation

Discusses gas as a state of matter, the history and use of the terms vapor and gas, and types of elemental gases.

Information about amphibians, animals that can survive in a wide variety of habitats and cli-ates. The article discusses their behavior, diet, predators, conservation status, and evolution. (Published: August 29, 2008)

Article describing research done in the West Antarctica, where ice cores were removed to a depth of two miles, providing information on climate change over the last one hundred thousand years. (Date published: Feb. 2, 2011)

Explains what greenhouse gas is, how the greenhouse effect works, and the history of fossil fuel combustion. Causes of other damaging greenhouse gases, including methane, nitrous oxide, chlorofluoracarbons, hydrofluorocarbons, and...

Explains what solar power is, how it is produced, its limitations as an alternative energy source, environmental issues, the importance of analyzing solar power systems on an ongoing basis, and geographical considerations. (Published:...

A comprehensive resource of articles, videos, news and other research opportunities featuring environmental and earth science. References have been created by experts in the field and are useful for researchers and educators to enhance...

Explains what genetic mutation is, results of mutation, types, how scientists use it in research and in medicine, what it looks like at the molecular level, chemicals that can cause mutation, and frequency of occurrence. (Published:...

Article explaining the importance of carbon as the basis for life, carbon dioxide's role in photosynthesis and respiration, carbon in the ocean and lithosphere, the impact of human activities on the carbon cycle, carbon that seems to be...

Information about the element, Ytterbium, atomic number 70. Covers physical properties, atomic properties, how abundant it is on the Earth, and details about health-related regulations.

Information about the element, Vanadium, atomic number 23. Covers its history, sources, physical and atomic properties, prevalence on the Earth, details about any health-related regulations, uses, and possible substitutes.