"core" like Earth Get Resource „core – National Geographic Society” outer core 10,800 degrees Fahrenheit http://nationalgeographic.org/encyclopedia/core/ www.nationalgeographic.org... Get Resource http://www.nationalgeographic.org/encyclopedia/core/ núcleo https://www.nationalgeographic.org/encyclopedia/core/ National Geographic: Earth's Core https://www.nationalgeographic.org/encyclopedia/core/ https://www.nationalgeographic.org/encyclopedia/core/