Energy for Sustainable Development
Esd Bulgaria: Kids & Energy: 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...
Texas Railroad Commission
Texas Railroad Commission: Kids World: History of Coal Use
This one-page summary provides many facts about the history and origin of coal in providing humans with heat and energy.