Doyle,+Zoey

Classification of Matter Some of the similarities in these diagrams are the way they are portrayed. They both have branches and titles. The first one actually has the pictures and the second and third do not. The differences are also in the way they are portrayed. I believe that the first one is more confusing than the second and third one only because they are like tree diagrams. I prefer the second one because I think it’s the easiest to read and understand.

Separation of Matter One thing i did not know was that there are different colors and dyes in each of the m+ms and skittles. I really liked the lab we did to show the separations of the colors. I always wondered what the blue lakes and red 40's and stuff meant and now i have a better idea. something i found really interesting is the whole distillation process. i never knew how they did that and it's nice to now see how they do it. i found it interesting in the video how they showed to whole process up close and you could see the different levels of the distillation at the end.

Why measurement is important to me.. Measurement is important to me because I don't want to put on clothes that don't fit. First of all it would be uncomfortable, and it wouldn't look good. Another reason why it is important to me is because, I don't want to eat a cake that has to many eggs in it or not enough of something. I don't want to go to a restaurant and pay for a meal that doesn't taste good because someone messed up on the measurements. And I'm sure a lot of people would agree with me when I say that.

Zoey, I agree!! MW

Redefining the Kilogram In this article i learned the SI measurements. There are seven and they include: kilogram, meter, second, ampere, kelvin, mole, and candela. The candela and the ampere are very confusing to me so I would need to study more about those if we needed to know them. I have only really heard of four of the seven measurments which are the meter, the kilogram, the second, and the kelvin. We learned about the Kelvin this passed week in class. I also learned from the article that the one original kilogram was made in 1889 and is kept in a metal case so no one can steal it. What i dont understand is how the original kilogram fades considering it is kept in a metal case?

Airline Security I was very shocked and surprised when I read this article. I found it very interesting how the screeners come across explosives and firearms. They use the screens to detect the dangerous weapons inside peoples bags that they bring through security. I also found it kind of scary that they find around twenty firearms per week at the airport through the security check. If they are suspicious or have a ligitiment reason to, they can search you and the rest of your belongings and use swab tests to track explosives and weapons. So all together what I took out of this article is, first of all don't bring weapons to an airport, and I learned a lot about the processes they go through to keep the other passengers safe.