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.

A number of topics that we covered in Chemistry were elements, the periodic table, where elements are located on the periodic table, and finally what the numbers of an element mean such as atomic number, mass etc.

I have taken AP Chemistry in high school and last year we had a summer assignment to do that included talking about the periodic table, elements and their charges. We also did the experiment with balloons of hydrogen and oxygen while discussing the bonding of multiple elements. Although I have discussed and seen these topics before it was still a nice refresher of what is to come in Chemistry.

A few ways to identify if a chemical reaction is occurring would include a gas is produced, formation of a precipitate, change in color, or transfer of energy (heat and/or light), and the change is irreversible.

I do not have any questions about the material covered today but I am looking forward to when we can began working in the chemistry lab completing experiments and working on a little more difficult assignments such as Stoichiometry, Titrations, Equilibrium and Thermodynamics.

Chemistry is the science of matter and molecules and the changes they undergo during chemical reactions. Everything in the world is made of chemical elements and the molecules they form. By studying chemistry, we can understand the making of aspects in our everyday lives. Chemistry is seen in most fields but especially sciences and medicine. As a pre-veterinarian student, chemistry is important because vets are certified to administer pharmaceuticals and other medical prescriptions, which it is their responsibility to know the drugs, what they contain and any affects that will occur to the animal when administered. A chemical molecule that I feel is important in my career of veterinarian medicine would be water, H₂0. If the world did not have water, humans and animals would not survive. Water is a basic necessity for all living organisms. If there came a time when no animals were around, veterinary science would become nonexistent for the soul reason that animals are the building blocks to this medical field.