The study of oscillations and propagation of energy through matter and space....
American molecular biologist who co-discovered the double helix structure of DNA....
An information system enabling documents to be connected via hyperlinks on the Internet....
The continuous movement of water through Earth's systems: evaporation, condensation, and precipitation....
The biological process by which skin and other body tissues repair themselves after injury....
The first President of the United States and a Founding Father of the nation....
Art music traditions rooted in Western Europe dating from the Medieval period....
Efforts to protect species and their habitats from extinction....
A specialized UN agency responsible for international public health....
A global conflict from 1939 to 1945 involving most of the world's nations....