Nov. 15-19 : Global Warming & Nitrogen Cycle

We're wrapping up our discussion about the carbon cycle, and possible human influences on it, and moving on to nitrogen. Nitrogen is important for the DNA and proteins in living things - so it's important to understand how it gets around and how we influence it as well.

Mon 15 - Greenhouse Lab (p8)
Tues 16 - Annotate global warming article
Wed 17 - Finish pg8 and play nitrogen cycle travelling game (10)
Thurs 18 - Nitrogen Cycle Notes (11)
Fri 19 - Finish notes

With the nitrogen cycle we're going to talk a lot about how humans influence the amount of nitrogen in the soil and water by adding fertilizers. Too much fertilizer can be carried away by rain water into our groundwater, rivers, and oceans. It causes algae to bloom (grow) and many algaes actually can create deadly toxins. Do humans worry too much about green lawns? This might be a good topic for discussion if you want to do some critical thinking!