Monday, September 17, 2007

Ashley Saunders 3/3

Today in biology 20 we began the class by handing in Tests that Mr. Challoner gave us the oppotunity to improve our mark. After this we marked our acid rain and Ord kangaroo rat sheet. We went over the answers and then handed our sheets in.

Later on in the class we went over the carbon cycle. Here we learned that cows breath in oxegyn, and breath out carbon dioxide (this goes for any animals and humans). Cows also fart which leads to carbon into the atmosphere. C02 Moves around the cycle constantly. Methan leads to things in this cycle rotting, and the last component in this cycle is burning fossell fuels. A diagram like this helps show how everything is related to each other in some way.

After going over the carbon cycle we had to fill out our own workshett of the carbon cycle. Once this was filled out we had to do a chart that had to do with carbon resevoirs organic and inorganic. If we needed help understanding how to do this we could read pages 49-51. there were two really helpfull paragraphs, one on page 49 "Resevoirs for Inorganice Carbon" and "Resevoirs for Organic Carbon."

My thoughts and opinions on todays topics and discussions was a very helpfull topic. its helps me and my classmates understand cycles like this easier. We have done this in previous grades but a little reveiw on this topic was not a bad idea. The part where we had to do the chart on resivoirs also helpfull because it helped us realise how things fit into certain categories and where the belong in the cycle.


Here I added a photo of the carbon cycle.

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