Part one of term paper
Dalton, John was born in Eaglesfield, in 1766 and died today 1844. Dalton was a British chemist and physicist, who developed the atomic theory of matter on which modern physical science was founded. He began a series of meteorological observations in 1787 and he continued them for 57 years. Dalton accumulated some 200,000 observations and me ...

Part two of term paper
... contribution to science was his theory that matter is composed of atoms of differing weights that combine in simple ratios by weight In 1808 Dalton published a book called A New System of Chemical Philosophy, in which he listed the atomic weights of a number of known elements, relative to the weight of hydrogen. His weights were not entirely accurate though , but they formed the basis for the modern periodic table of the elements. Dalton arrived at his atomic theory through a study of the physi ...