#2 TO THE CENTER OF THE EARTH! Directions: 1. Go to: http://library.thinkquest.org/17457/english.html 2. Read about the internal structure of the Earth. 3. Label the diagram and table below. Layer Temperature Composition Thickness Crust corteza Mantle manto Outer Core núcleo externo 4. Then match the correct word to its definition and fill in the missing blanks. Words: crust Inner Core núcleo interno inner core mantle outer core The ___________ is a rigid, rocky outer surface of the Earth, composed mostly of iron and nickel. It is thinner under the oceans. The center of the Earth, called the ___________, is composed of solid iron. It is very hot and under great constant pressure. The ___________ is a rocky layer located under the __________. It is composed of aluminum, silicon, magnesium, oxygen, iron, and calcium. Convection (heat) currents carry heat from the hot inner mantle to the cooler outer mantle. The molten iron-nickel layer that surrounds the inner core is called the ____________. Spanish Learners Supporting Vocabulary: Earth / Tierra solid / sólido globe / globo terráqueo liquid / líquido layer / capa