This compact collection of slides explains the history and use of the mole unit. Relative atomic mass, as John Dalton understood it, is explained. Avogadro's number is also introduced. The mole, or the unit for the amount of a substance,...

In this atoms worksheet, students complete a graphic organizer comparing the properties of the 3 subatomic particles. Then students complete 1 short answer question.

This is part of a small radio show at the University of Houston. It talks about how John Dalton came up with his version of chemical notation, and how it differs from our version of it today. It is available in audio form also.

[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will explain the law of conservation of mass, the law of definite proportions, and the law of multiple proportions. They will also...