Science 9:  We began with a survey of local tree species, and you made a guide to help people identify cedars, yews, firs, pines, spruces, maples, mountain ash, and birch.  We spent time learning about 5 carbon sinks:  biomass, fossil fuels, atmosphere, ocean water, and limestone in the Earth's crust.  We finished by reading "The Largest Migration on Earth", an article about carbon cycling within the ocean.  Click here to learn about salps.  At the end of the class, I collected pg 91 that was assigned on Tuesday.