Wood
Wood is a material with a multitude of uses; it is used as a fuel; as a structural component of buildings, boats, and furniture; as the raw material of countless paper products; and in marvelous works of art. Check out the links below to learn about the chemistry of wood, as well as some of the materials used to coat wood.
Links
This site has extensive chemical resources if you follow links:
http://pslc.ws/macrog/mpm/composit/natural/wood.htm