Chemistry 9-30-11

Today in Chemistry period 3 we finshed taking our vocabulary quizzes on quia. We also learned about properties of substances: chemical, physical, intensive, and extensive. A physical property is when you can observe it without changing it. A chemical property is when it reacts and changes. Intensive property is independant on how much of a substance is. Extensive property is dependant on how much of a substance is. Once we learned these we did an electronic poll on these properties.