As we know human activity creates CO2 and puts it into our atmosphere. When the CO2 is dispersed 30%-40% of it is put into our ocean the rest either ends up staying in the atmosphere or on land helping plants or something. All that carbon dioxide creates the oceans acidity to rise. The CO2 in the water reacts with the water (H20) creating carbonic acid. If you look at the equation below, the process of all this makes it so all the hydrogen ions are freed and are left floating around which is what causes the acidity to rise. And this is pretty normal for the acidity to rise but the rate that its changing is much faster than anything that we've seen in a long time. And when the pH is lowering its causing coral to be destroyed and its disturbing animal life such as fish and crustaceans. So I believe that If we stop using so many fossil fuels and that if we try our best to not drive or waste electricity we can slow down this process of destroying our oceans.
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The one thing that kept reoccurring in this video is when Neil deGrasse Tyson answers any question he is very careful and wise with his words and although he is a very smart we'll educated man he answers by saying my answer is “ ” but that's my answer someone else could be thinking something entirely different. But he could just take his word for fact since that's what us humans do, we take in information which could be true or false and depending on our knowledge of that person we say “Yeah right like he knows what he's talking about.” Or we could say this is a teacher this must be right. But Neil doesn't tell us what's right he suggests something and lets us ponder that and decide for ourselves. Also another thing that I really found inspiring was when he said that we thought our planet was the only one, then we found out about our whole solar system. We thought our sun was special, then we found billions just like it, then our galaxy and then he say that there could be other universes like ours but slightly different and that we need to open ourselves up to all the different possibilities that are out there. I think the main thing that he’s trying to get across is that our world is vast and we will continue to explore and that we will never stop progressing.
In Andrews class the other day we learned about properties of matter such as Pressure Buoyancy and Density. All three of these things are vitally important because say you have a trash bag. just a regular old trash bag but, if how decrease the density by raising the temperature it will float away! We did this in class by making floating candles it was fun and a good way to understand the properties of matter.
Density is the amount of mass per volume so mass/volume. So to change the density of something you should change the ratio, up or down depending on what your trying to do. Buoyancy is how much something will float wether its gas or a liquid. Buoyancy is determined mostly on the density of an object. Pressure is the sum of collisions of gas particles on the walls of a container. There are three properties of matter Solid, Liquid and gas. Some things that can change an objects physical form are pressure decrease/increase and the raising or lowering of temperature. I have included a chart that helps show this. It helped me understand what and how all of this works. As you can see from the chart any state of mater can skip to another which was one thing I did not know until our dry ice experiment. I learned that a solid can actually go straight to a gas! I also learned that this process is called deposition.
Below are the names of the process of matter changing its form from each specific state into another. Gas^Liquid= Condensation Liquid^Gas= Vaporization Liquid^Solid= Freezing Solid^Liquid= Melting Solid^Gas= Sublimation Gas^Solid= Deposition |
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December 2016
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