In this screencast, we review the positions of metals, metalloids, and nonmetals in the Periodic Table and the general characteristics of each.

Learners convert units used to designate pressure. Units for pressure are atm, mm Hg, torr, and pascal.

Learners view an animated presentation showing how the pH level of a cleaning solution is controlled in a closed-loop system in a manufacturing setting. A quiz completes the activity.

In this interactive lesson, students examine the quantitative relationship between chemicals in a balanced mathematical equation.