Volume (a) Verify that each of the rectangular solids shown in the figure has a surface

print out labs from ilearn Slide 1:  Introduction to geology and geologic time 2  Earth formed 4.5 Ga (billion years ago)  Big bang 13.7 3  Structure of the earth o Everything is related o Outside of the earth (crust) is mostly silica and oxygen  Two types of crust (oceanic and continental) o Beneath the crust is the mantel  Silicates, magnesium and iron  As going to the center there are different chemicals and elements o Core  Mostly iron  Some nickel  Dense metals  Chemistry of the earth changes from less dense to more dense going in 4  Mechanical layers