Chemistry sept. 30

Today we finished the vocab quiz and got signed up for this system with your cell phone. You sign up by texting the code to the number. In class we used this by texting either a letter or a number according to the question on the overhead. The questions were all about whether the things asked about were intensive or extensive. One question during class was, is density intensive or extensive? Since it does not matter how much it is, the answer was intensive. Intensive is where the amount is independent and doesn't matter, while extensive is dependent on the amount, such as mass. All of the questions using this style of learning were either intensive or extensive.