All chemical reactions require energy. To explore thermodynamics, classes read and discuss its laws, exothermic and endothermic reactions, enthalpy in many forms, calculate enthalpy problems, and use Hess' Law to calculate enthalpy of a...

Describes how coal is formed using a chart and great pictures.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on coal power. Review questions are included at the bottom of the study guide.

This article looks at the properties of coal, graphite, and diamonds, all of which are made from carbon, and explains why they are different. The formation of diamonds inside the Earth is described, and the theories around whether or not...

Describes the evolution of dead plant matter into coal.

Coal is a combustible black or brownish-black sedimentary rock composed mostly of carbon and hydrocarbons. It is the most abundant fossil fuel produced in the United States. Coal is also a nonrenewable energy source because it takes...

This informative site lists four stages in the development of coal. Different types of coal mines are explained in this site as well.