The University of Minnesota Biocatalysis/Biodegradation Database (UM/BBD) contains "microbial biocatalytic reactions and biodegradation pathways primarily for xenobiotic, chemical compounds." A new microbial...

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 College Board has developed the "AP Central" website to provide resources for teachers seeking to improve their students' performance on AP exams, including human geography, chemistry, and European history. This...

This lesson, presented by the National Nanotechnology Infrastructure Network, covers size, scale, and measurement. In the first part of the activity, students will view the classic Power of 10 video before measuring...

This site contains many chemistry applets created by Jonathan Goodman and his group at Cambridge University. An example of an applet available is the Molecular Weight Calculation; whereby entering in a molecular formula,...