Due to the presence of dissolved gases such as carbon dioxide, rainfall is naturally acidic. The release of other gases and chemicals such as sulfur dioxide during the combustion of coal and oil can cause rainfall to...

Stephen Lower of Simon Fraser University presents this site on a visual approach to acid-base problems. Lower says that although he still finds it important to teach students to solve acid-base problems algebraically,...

The Acoustic Monitoring Project at NOAA is observing the ocean through underwater acoustics. At this site, visitors can learn about NOAA's studies in Bioacoustics, Ocean Seismicity, and Environmental Noise. The site also...

Dan Russell, a professor of Applied Physics at Ketting University, created this site to provide students animated images of sounds and vibrations produced by instruments such as loudspeakers and guitars. The site is...

Berlin's Institute of Chemistry maintains the Acronyms and Abbreviations database, which contains more than 12,000 entries geared towards chemistry and spectroscopy. Users need only type in an acronym or abbreviation and...