About Spotsylvania County. 1  Spotsylvania County Public Schools are governed by a seven-member elected School Board. 2  There are 31 public schools and centers including 17 elementary schools, seven middle schools, five high schools, one alternative learning center, and one Career and Technical Center.
Definition. Reduction in the amount of energy consumed in a process or system, or by an organization or society, through economy, elimination of waste, and rational use.
The scientific law of conservation of mass states that the total amount of mass in an isolated system remains constant. This means that the atoms present before a reaction are still present at the end of a reaction, they are just rearranged to form new molecules and compounds.