PDS APES 5th Period 2009-10

Hi folks, You all may notice the fish tank is empty this week. Some of the non-AP environmental students and I drove up to the NC mountains to release them. If you want to know more, check out the blog post on it: http://pdsblogs.org/apes509/2010/04/18/free-at-last/ *There is a sweet underwater video clip of the fish swimming [...]

I know this is last chapter (ecosystems/cycles), but I think it illustrates how important knowledge of the nitrogen cycle is for managing an aquarium. It was a rough weekend for my trout. When I went in to check on them Saturday, I found this… …and about 19 more like him! I immediately checked the tank [...]