Monthly Archives: November 2012

Chapter 1 Section 1 – Branches of Earth Science Geology: study of origin, history and structure of earth Oceanography: study of the sea/ocean Meteorology: study Earth’s atmosphere (weather and climate) Astronomy: study of the universe Environment Science: study of how … Continue reading →

made of different layers divided into  3 layer : crust, mantle, core less dense make up crust densest make up core crust is 5 t0 100 km thick outer core is 2,200 km thick inner core is 1,230 km thick … Continue reading →