| A | B | 
| pure chemistry | the pursuit of chemical knowledge for its own sake | 
| technology | the means by which a society provides its members with those things needed and desired | 
| chemistry | the science concerned with the composition of matter and the changes that matter undergoes | 
| analytical chemistry | field of chemistry that is concerned with the composition of matter | 
| microscopic | describe an object that can be seen only under magnification | 
| organic chemistry | the study of essentially all chemicals containing carbon | 
| biochemistry | field of study that is concerned with the chemistry of living organisms | 
| scientific method | a logical approach to the solution of scientific problems | 
| biotechnology | applies science to the production of biological products or processes | 
| observation | information obtained directly by using your senses | 
| experiment | a method of testing a hypothesis | 
| manipulated (independent) variable | variable that one changes during an experiment | 
| hypothesis | a proposed explanation for what is observed | 
| theory | a well-tested explanation for a broad set of observations | 
| scientific law | describes many observations but does not explain them | 
| applied chemistry | research that is directed toward a practical use or application of chemical knowledge | 
| inorganic chemistry | study of chemicals that in general do not contain carbon | 
| macroscopic | objects large enough to be seen with the unaided eye | 
| matter | any thing that has mass and occupies space | 
| physical chemistry | field of study that deals with the mechanism, the rate, and the energy transfer that occurs when matter undergoes a change | 
| pollutant | material found in air, water, or soil that is harmful to humans or other organisms | 
| responding (dependent) variable | variable that is observed during the experiment | 
| inference | a conclusion or opinion formed by known facts or evidence |