chemistry

chemistry
the study of matter and the changes that it undergoes
matter
anything that has mass and takes up space
mass
a measure of the amount of matter
weight
a measure of an amount of matter and also the effect of earths gravitational pull on that matter
pure research
a type of scientific investigation that seeks to gain knowledge for the sake of knowlege itself
applied research
a type of scientific investigation that is undertaken to solve a specific problem
technology
the practical use of scientific information
base unit
a defined unit in a system of measurement that is based on an object or event in the physical world and is independent of other units
accuracy
refers to how close a measured value is to an accepted value
precision
refers to how close a series of measurement are to one another