American Chemical Society
Middle School Chemistry: Lesson Plans: Surface Tension
Students observe and investigate why water has a strong surface tension.
Other
Who Zoo: Bongo Antelope
The Fort Worth Zoo provides a general overview of the Bongo Antelope. Content includes a focus on the antelope's physical description, behavior, and personal observations.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Mineral Identification
At this site you can identify minerals by observing and testing the physical properties of each mineral. A mineral worksheet and mineral background sheet are included in this site.
Other
The Science House: Floating Candles
In this experiment students observe a combustion reaction and deduce the components necessary for the reaction to occur. They also see the relationship between pressure, volume, and number of molecules for gases.