Weekly Blog- 9/28
Image- en.wikipedia.org Summary- Using the information on the earth's layers from last week I made my "earth's layers foldable" . The foldable showed Earth's layers as you get deeper and deeper into earth's interior; crust, mantle, outer core and inner core. Each layer had information on the composition, State of matter, and thickness of the layer: (Crust- 5-100 km thick, made up mostly of silicon and oxygen in the form of granite and basaltic rocks, and it is a solid. Mantle- 2900 km thick, made up of hot semisolid silicate rocks rich in iron nickel and magnesium, and it is a semisolid Outer Core- 2200 km thick, made up of liquified iron and nickel, and it is a liquid Inner Core- (diameter) 2456 km, made up of iron and nickel, and it is a solid) Making a model to represent earth's layers made the concept easier to understand. As we finished our models, the new topic was the continental drift. Alfred Wagner believed that at some ...