Today’s main topics included temperature, states of matter and density. There are three different ways of measuring temperature which are Celsius, Fahrenheit, and Kelvin. There are also three states of matter: solid liquid and gas. Gas has the highest temperature and a greater range of motion compared to solids. One single important note to remember is that both solids and liquids are condensed phases. We talked a little about density that water when frozen it is less dense than liquid water, hence the reason why it floats. This was really the only density topics we discussed in class today.

There are a few main differences between absolute scale and relative scale. Relative scales mean that they vary and change with their surroundings. Absolute scale means that there can be several limitations since they are absolute and never change. For example, a relative scale measurement of miles per hour would be 70 mph. The absolute scale of miles per hour would also include the rate at which the Earth is turning in 24 hours which is 1,000 miles in one hour, therefore making the absolute value 1000 + or - 70 mph. For temperature Celsius and Fahrenheit scales are relative. The Kelvin scale is absolute for molecular motions.

We are also asked to include questions and things we are wondering about. I do not have any questions pertaining to the lecture we talked about today. I am wondering what the next topics we will be discussing on Wednesday and Friday. I completed the OWL assignments for February 1, 2012 and then within the next few days, I hope we will find out if the other homework needs to be completed by February 3^rd.