Coal: An Ancient Find
Around 4,000 years ago, someone in northern China came across an odd black rock. It was one of many. Then this person discovered something. Somehow this person discovered that the rock could burn.
Life was harder back then. Keeping warm and getting food were big worries. With no electricity or gas for heating or cooking, everyone burned wood. The strange rock that burned like a log must have been very exciting back then.
This rock was coal. Archeologists think this was the first time a human used a fossil fuel.
For many years, only a few places with easy access to coal used it. Outside China, one such place was Britain. It was hard to miss there. People could go to the beach and pick up lumps of .........