Walker,+Roy

I liked the second graphic organizer the best because it was simple, and to the point. Also because it was easy to read. All of the charts are pretty similar. They are similar because they all have the same information but they show it in different formats. They were also all a little different. The second two were different than the first one because they were put into different types of diagrams. The first one asked questions where the others didn't. I didn't like the third one because it was not as easy to read as the last one. They all relayed the same basic information and were all pretty easy to read but I thought the first one was the best.

Some things that I learned were about mixtures, solutions, compounds, and elements. I have already known about elements and basically what they were because they have taught us about these in the past and I have seen the periodic table of the elements. But I did not really know the difference between compounds, solutions and mixtures. It really helped me when the examples of each were stated. Now I know a lot more about how mixtures are a few things non-chemically mixed together. And how a solution is made and that it doesn't settle. Lastly about the compounds and how it is made up of a few elements, etc. This material is important and interesting to me.

Something in my life that would require measurement would be if I had to build a shed or any other structure. It would be really important to have the measurement correct because if your even off by the slightest amount it would screw up the rest of the measurements. In the end the structure would come out lopsided or it might even fall apart. This would make me very angry because after all of that work it wouldn't have turned out correctly.

I found the article very interesting. One interesting piece of information I took from the article is that the kilogram is the only measurement that still uses an actual artifact. I thought that this is a good idea to limit the amount of actual artifact because an actual artifact can be stolen or destroyed no matter how well it's protected. Also, I thought it was very interesProxy-Connection: keep-alive Cache-Control: max-age=0 ng that the official kilogram has lost 50 ug over time when compared with the copies. This could be very problematic over time if it continues to do this. Also I thought that it was pretty cool how they made copies to distribute.

I found this article very interesting. I was surprised at the amount of ways that you can make a bomb. I hadn't realized that you could make a bomb out of every day materials and I was even more surprised by the fact that you can look it up online and it will show you step by step how to make it. I guess I never really thought about looking for it. I thought that it was impressive how many different machines that they have to see if you have explosives, guns, or materials that can make explosives. I think that x-ray is a very important technology and is very useful in keeping us safe.

Good thoughts! 5 stars. MW

I found that the concept of mole day is very interesting and I have never actually heard of the day. I also was surprised how extremely huge the unit of a mole really was because when you see it on paper that number of zeroes doesn't seem like that much but when you hear the references I realized how big it really was. I would never have guessed that a mole of paper stacked high would reach all the way up to the moon 80 billion times. I also found it quite interesting that they could calculate how much a mole was by weighing it. I never knew that you could actually count the amount of something just by weighing it. I found the entire concept of mole day new and pretty cool.

I have learned a lot about this article. I think that it is very intriguing that something as simple as sugar and oxygen can create an explosion that can kill many people and destroy the facility. I was also surprised when they said that there could be as little as an eighth of an inch of dust can create a dust explosion that huge. I don't think that it is good that it can do that much damage but I do find it interesting that an explosion can occur from those materials in particular. I think that it is related to stoichiometry because of the process of combustion as the dust catches on fire combined with the oxygen and creates an explosion.

Sulfur Hexaflouride is a very interesting gas and it's properties are very intriguing. I think that the fact that the fact that it will inflate not deflate when filled with the gas is awesome. I also never used to know why balloons with helium in them would deflate and why balloons that I filled up with regular air didn't deflated so now that I know that it all makes a lot more sense. I also think that it is very interesting and something that I've never heard before that you breathe out because of the carbon dioxide in your lungs and not because of the lack of oxygen. Because of this it would be easily to accidentally kill or injure yourself by breathing in a lot of helium.

Roy, You never hear about people dying form He inhalation. CO though - that's another story! MW

The motion detector article was quite very interesting. It amazed me how very complicated such an every day item can be. For instance they use things like radar which is used in military equipment and planes and high tech things like this used in a little motion detecting device used in every day activities. I was also surprised that there were three different ways that the devices were made like they use radar, heat, and sonar. They are much more complicated than I would have ever thought of.

Roy, Yes what was cutting edge technology a few years ago is commonplace now. Same with lots of things! MW