About Earth structure

http://www.kidsgeo.com/geology-for-kids/0020-crust-mantel-core.php

The Earth’s Crust The first layer consists of about 1o miles of rock and loose materials, scientists call the crust. Underneath the continents, the crust is almost three times as thick, as it is under the oceans.

地球的地殼

第一層由大約10英里的岩石和鬆散材料，科學家們稱之為地殼。位於陸地之下，地殼厚，幾乎三倍，因為它是在海洋。


The Earth’s Mantle

Traveling beyond the Earth’s crust, we next encounter the mantle. The mantle extends to a depth of approximately 1,800 miles, and is made of a thick solid rocky substance that represents about 85% of the total weight and mass of the Earth. 


地球的地幔(音同：慢)

超越地殼旅行，接下來我們遇到地幔。地幔延伸深度約1800英里，是由厚的固體岩石組成，它是構成地球的總重量和質量約85％的物質。

The Earth’s Outer Core Traveling still deeper within the Earth, we next would encounter the Earth’s outer core, which extends to a depth of around 3000 miles beneath the surface. It is believed that this outer core is made up of super-heated liquid molten lava. This lava is believed to be mostly iron and nickel.

地球外核
旅行到更深的地球內部，接下來我們會遇到地球外核，他的深度可延伸到約3000英里的表面之下。據認為，地球外核是由及高溫的液體熔岩組成。一般相信這裡的熔岩主要成分是鐵和鎳(ㄋ一ㄝˋ)。

The Earth’s Inner Core Finally, we would reach the Earth’s inner core. The inner core extends another 900 miles inward towards the center of the Earth. It is believed that this inner core is a solid ball of mostly iron and nickel.

地球的內核
最後，我們到達地球的內部核心。地球內核是從地球外核向內擴展900英里至地球的中心的部分。據認為，地球內核是一個主要由鐵和鎳構成的實心球體。