Friday, October 23, 2009

Tuesday, October 13, 2009

Science is Fun Good site for kids type science demos and examples

General Chemistry Online
The Classic online chem textbook

Phase Diagrams and Kinetic Molecular Theory

Three good animations for Phase change and Kinetic Molecular Theory.

Interactive Phase Diagram

Molecules in Motion

Phases of Water

Thursday, October 8, 2009

Layered Curriculum Day here in Chemistry class. Four Lab stations, four different labs going on, all kids engaged in science. One pair working on determining which of 5 different ionic compounds are exothermic or endothermic, another is determining the heat of fusion of candle wax. A different group is calculating the number calories consumed by an alcohol burner and a third is prepping a lab for next class by melting mass quantities of wax in a water bath and weighing out equal test tube fulls of the stuff.
I am starting them to clean up and have no grading to take home. Sounds good to me.

Tuesday, October 6, 2009

Super conductors and Mag-Lev trains cooled with Liquid Nitrogen