Nicole Rushin 1. On a recent tour to the center of the earth. I was able to describe how the immense amount of heat energy released from gravitational energy and from decay of radioactive elements melted the entire planet ant it is still cooling today. I also showed how the earth’s crust is divided into four main layers inner core, outer core, mantle and crust. I was able to show how the outer core is so hot. When we reach the inner core we had to put on protective clothing because the temperature reached up to 4300 which is solid iron. We also viewed the different material that compose it such as iron, magnesium, aluminum, silicon and oxygen, all silicale compounds. Because the layers become thicker as you go down it shows why the density in the material increases. 2.
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This note was uploaded on 11/28/2010 for the course ACT 2201 taught by Professor Alexander during the Spring '09 term at Troy.