Name and define six of the contagious diseases. 1. Conjunctivits; pinkeye, inflammation of mucous membrane around the eye. 2. Herpes sim 1 - fever blisters or cold sores. 3. Herpes zoster - shingles; painful skin condition from reactivation of chickenpox virus.
The scientific study of elements, atoms and molecules is called  Chemistry.   A person who practices this science is called a Chemist. 7 people found this useful.
exists and is an alternate of . John Dalton's most important theory, developed in 1803, was that matter is composed of atoms of differing weights that combine in simple ratios. Dalton published a book in 1808 listing the atomic weights of a number of known elements relative to the weight of hydrogen.