tin is a mean of wood & yellow are often made of tin ->  nails are made of metal  nails are made of metal & window in glasses with land and space will final ->  nails in contact with water and oxygen will rust  nails in contact with water and oxygen will rust & quality forming is a mean of physical static ->  nails rusting is a kind of chemical change  nails rusting is a kind of chemical change & physical static is a mean of physical doorbell -> nails rusting is a kind of chemical reaction