Mix things up in your physical science class by introducing mixtures. The three types are defined: suspension, colloid, and solution. It all depends on the size and type of the involved particles. With attractive animation and an...

A lot goes on during this visit to the Ellen DeGeneres show. During the first segment, Spangler demonstrates the ability of the human body to act as a conductor of electricity and he shows the clean burning properties of hydrogen and...

What makes air fresh or not so fresh? The solution is solution chemistry! Explore homogeneous mixtures with a video from the JFR Science series. The narrator explains a variety of solution terms, how to classify solutions, and how people...

How and why barium is used in X-rays is the focus of a video that also describes the similarities with bones, the insolubility, and the medical applications of this element.

Explain how to find the center of mass of an object. A video uses suspension and plumb lines to find the point of intersection that is the center of mass. It also relates this concept to simple pendulums, covering the time period and...

A video lecture discussing the properties of homogeneous mixtures and how to distinguish between the different types. Understand that homogeneous mixtures that have large particles that eventually settle to the bottom are known as a...

Enjoy this bridge building video and learn some of the important differences between arch, suspension, and cable-stayed bridges. [3:05]

This is a two part video that introduces the different types of bridges. The bridge types will be introduced in historical order from simple (beam and arch) in the first video to more complex (truss and suspension) in the second video....

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.