Current Events #2

The article i read was about ozone depletion. Ozone depletion is a well know topic today. It is a common topic that people talk about. As a matter of fact, our ozone layer is being destroyed right this very second. The ozone is a blueish-grayish gas that contains of three different types of atoms. An example is O2, this is the gas that human breathe in. Our ozone is being destroyed because humans are using many different pollutants like hairspray and may other things that contain chlorofluorocarbons, better known as CFC's. CFC's are the main cause of our ozone's depletion. A place there is suffering terribly of ozone depletion is Antarctica. Due to the destruction of the ozone above them, many icecaps and glaciers are melting. This effects the animal life that lives in the waters because there homes may be melting.

In my opinion, I think this is a subject that we should take into our consideration. We should think about how we treat our Earth, and begin or continue on to treat it better. However, on the bright side, according to the article, they will eventually find a resolution to this problem that will help conserve our ozone layer. This makes me feel better about our ozone, but i still have to keep in mind that our Earth needs as much help as it can get!http://library.thinkquest.org/26026/Environmental_Problems/ozone_depletion.html

Class Review (Science)

One of my favorite experiments/activities we did in class was when we all acted as animals hunting for prey! In this activity, we went outside and lined up, then Mrs. Gavin threw different colored toothpicks all over the grass, then we all had to do the best we could to gather the toothpicks in a certain amount of time! Some of the colored toothpicks were harder to find then others. This is because they camouflaged with the grass. For example, the green ones were harder to find since they blended in with the grass!

This activity showed predator-prey relationships because we had to each gather our own food while Mrs. Gavin or a different volunteer would act as a predator and try to chase us away from the toothpicks while we were trying to gather our food. This activity also exampled competition. This is because we all had to do our best to collect as many toothpicks as we could to "survive." People were running as fast as they could to gather as many toothpicks as they could before other people took them. I am a very competitive person so i really enjoyed this activity!

(I received my facts and information from my ISN and handouts that SunnyD had given me during class.)