Time4Learning offers an interactive online science curriculum as part of its online education program. The materials are presented using a combination of multimedia lessons, instructional videos, printable worksheets, quizzes, tests and both online and offline projects.
 Coal is formed from plant life buried in the Earth millions of years ago. Like Petroleum and natural gas, it is a carbon-based fossil fuel.  Coal is called a fossil fuel b â¦ ecause it was formed from the remains of vegetation that grew as long ago as 400 million years.
It is both a physical and a chemical change. Chemical Change Coal is mostly made of carbon (C). When coal burns it combines with the oxygen (O2) in the air.This chemical chan â¦ ge results in carbon dioxide (CO2).t is both a physical and a chemical change. Chemical Change Coal is mostly made of carbon (C). When coal burns it combines with the oxygen (O2) in the air.