PS1.A: Structure and Properties of Matter

In the first physical science video for the Next Generation Science Standards Paul Andersen explains the structure and properties of matter.  He starts by explaining how all matter is made of about 100 smaller particles called matter.  He explains a teaching progression for introducing the topic of matter K-12.  This begins with a brief introduction to substances that can be scientifically observed at many levels.  This eventually builds through molecules and pure substances to the subatomic structure of atoms and the importance of binding energy.