Hank talks about IUPAC, prefixes, suffixes, ranking, numbers for carbon chains, and cis or trans double bonds. [9:05]

This lesson will introduce the systematic classification of matter used in chemistry, defining the terms heterogeneous, homogeneous, pure substance, mixture, compound, element and providing examples.

Expand the equation to calculate simple interest for a single period, P*(1+r), to calculate interest when interest is charged for more than one period and that interest is compounded at different intervals. [8:02]

Sal Khan shows you how to figure out the formula for fixed mortgage payments using the sum of a geometric series. [17:36]

In this lesson, students see that they can combine shapes to create a new, composite shape. It is 3 of 4 in the series titled "Shape Combining."

Students see that shapes can be divided in order to form new shapes. This lesson is 2 of 5 in the series titled "Shape Dividing."

This lesson will demonstrate how to identify and complete a decomposition reaction. It is 1 of 2 in the series titled "Chemical Reaction Types: Decomposition."

This lesson will identify the three main types of compounds formed (metallic, ionic and covalent/molecular) and provide examples.

This lesson demonstrates how to create composite shapes by combining other shapes. It is 1 of 10 in the series titled "Building Composite Shapes."

A screencast introducing different types of compound nouns and explaining how to punctuate them correctly. [2:28]