High,+Robert


 * __Classification of Matter:__**

After viewing the charts listed in the word document I have come up the conclusion that I do not like chart one. I decided this because, while it is more visual, I find the several arrows confusing because it is easy to misread one arrow and look at the wrong information. Chart two is my favorite of the three. It is the simplest of the three and still shows a sufficient amount of data. I guess, however, that chart three does have more flare and examples but I still like chart two more for the plain fact that it is simple and to the point.

In conclusion, I prefer chart two over the other two charts due to its simplistic design. Chart one is too confusing with arrows and chart three is too over whelming.


 * __Separation of Matter:__**

Something interesting I have found about crude oil after watching the movie is that it is in fact completely useless until it is broken down into the basic forms contained in it. To find the separate materials that make up crude oil you must boil the oil at different temperatures in order to evaporate and condense the materials found in it. This is known as fractional distillation. Which is relevant to class as we talk about breaking down things such as color to see what makes up that color. Lastly another interesting thing I remembered from the video is that the longer the molecules the higher the boiling point it has.


 * __Importance of Measurement:__**


 * Measurement is something that is important in my life but not to the degree that it has to be dead on accurate. For example... I always need to eat before a big game, however, if I eat too little I don't have enough energy and if I eat too much I feel sick. So I have to be careful and measure out correct amounts of food for optimal performance. Otherwise, only things I can figure I measure often is things such as medicine that I take, if I overdose on allergy medicine then this Proxy-Connection: keep-alive Cache-Control: max-age=0 uld definitely lead to some major complications. Also the wrong amount of substance in my epee pen could be fatal if I have to use it. Otherwise measurement is a small part of my life that I sometimes will overlook.

__Redefining the Kilogram:__**

After reviewing the article "Redefining the Kilogram" I found a few things quite interesting. The first of which is that the kilogram is one of seven base units accepted by the International System of Units. The kilogram is also still defined by a physical artifact which is kept in a vault at the BIPM located near Paris; it is one of six proto types being held there. However, the international proto type has managed to loose about 50 ug (unsure of how to make u symbol in "ug"). This has caused a committee to propose that the kilogram be redefined as an unvarying property of nature; the decision will be made in 2011. This change could affect educators, chemist and metrologist all having pros or cons from the change. Those are just a few things from the article that I found interesting.

Robby, Good thoughts! MW


 * __Keepers of the gate:__**

After reading the article "Keepers of the Gate" I found several things interesting in the article. The first of which being that although the public is so well informed on airline security, especially after 9/11, they still confiscate a total of twenty fire arms a week. I found this interesting because it is hard to think about how people could honestly think carrying a deadly weapon on an airplane is a good idea or even plausible. Only thing I could see for the reasoning is if the terrorists of 9/11 could carry on box cutters then they should have been able to carry on another weapon. Lastly the other thing I found interesting was the photo of the bag and the after photo once it goes through the x ray machine. I thought it was interesting because it is incredibly hard to identify what the actual items are as well as the bomb in the bag could look a lot like a battery in the back of the doll.

Robbie, What occurs to me is what happens at the gate if they discover someone is carrying a bomb or a gun? As far as I know it never happened but you might think the person may set it off right there! MW

__**Mole Day:**__

After much intense exploration of the ever so fascinating Mole Day website I learned and found several things out about Mole Day. One of which being that devout followers of this holiday have actually created a pledge in its honor; which I found funny and clever. Also I found several jokes using the word "mole" that were as well clever. To add a science aspect that I learned, I learned that the idea for the mole was not inherited until after Avogadro had past away which is sad seeing how much of a chemistry hero he would have been if it was recognized during his life. Otherwise I know Mole Day is on 10/23 and I am very excited to celebrate it!

Robby, I like your writing style! MW


 * __Dust Explosion:__

From reading this article I learned a few very interesting things. The most interesting being that sugar isn't exactly the way we think of it. It can actually be a very flammable substance; as noted by a sugar plant in Georgia. While the sugar was being processed in this plant it was also being broken down and spread on many surfaces without being noticed. This broken down substance was actually quite dangerous because the smaller the particles the faster it would burn and the more combustible it was. The substance is so sensitive that it can be ignited with static electricity. This isn't even the main source of the problem however. When the oxygen in the air reacts with the sugar particles an explosion is made actually shaking up more dust off the machinery and factory creating a chain of explosions more violent then the last. S **toichiometry plays into explosions by making ratios that can be dangerous such as the combustible broken down sugar particles (somewhat confused on this term...)

Robby, Solid post! Good job.


 * __Sulfur Hexafluoride:__**

After reading the article about Sulfur Hexafluoride I learned a few things about gases. I learned that helium is a lightweight gas that moves so fast it leaks out of the skin of the balloon faster then the air can enter or hold it in. This is what makes Sulfur Hexafluoride so interesting. It is a heavier gas so it actually leaks so slowly that air can fill the balloon faster then the Sulfur Hexafluoride could leave so the balloon actually grows in size until it pops. Otherwise I thought it was interesting on how its properties could make your voice lower unlike Helium, who makes it higher. So a gas walks into a bar… I don’t know where I was going with that ;) Robbie, Good post! Thanks for the laugh! MW


 * __Motion sensors:__**

The article about motion sensors mentioned variouse ways objects pick up light and other factors to function properly. This related to our current class in Chemistry in the fact that these devices use light sensors to pick up on infrared and other light sources. This is why it’s effective because only people give off enough infrared radiation to set it off. So basically these devices pick up on waves only given off by certain things. Overall the sensors communicate by giving off light and picking up on it, like my garage door with two sensors that if you break their site the garage door stops closing.

Robby, Good correlation to the garage door! MW