Student Tutorials in this chapter may require Flash and Chime browser plug-ins. If these tutorials do not display properly, you can download the Flash plug-in here, and the Chime plug-in here.

Some of the objects you can load here require Java. If you are using a Macintosh (Mac OS 8.x or 9.x), you will need to download and install the Apple MRJ 2.2 Java RunTime engine. If you are using Mac OS X, you do not need to make this step.

Scientific Method

Physical vs. Chemical Change

Classification of Matter

Mixtures and Compounds

Paper Chromatography of Ink

Phases of Water

SI Prefix

Conversion Example

Temperature

Density

Significant Figures Calculations