Atomic Theory and Structure
Early Ideas about Matter: From Democritus to Dalton
F. Senese, Frostburg State U. - From General Chemistry Online, a summary of Dalton's work.
Atomic Structure from Democritus to Dalton
F. Senese, Frostburg State U. - From General Chemistry Online, elements, mixtures and compounds.
M. Gleiser - A short essay on the origin of matter from the PBS program Stephen Hawking's Universe.
From the Internet Encyclopedia of Philosophy (IEP).
A New System of Chemical Philosophy
J. Dalton - 1808 paper introducing his chemical theory.
News & Events
News from around the world of science.
Cosmic X-Rays Reveal Evidence for New Form of Matter
NASA - Data from Chandra Observatory on dense matter.
Google - Research database allows searching of the scholarly literature.
Next Generation Science Standards (NGSS)
Next Generation Science Standards: For States, By States
National Academies Press: A Framework for K-12 Science Education