Earth's Layers by Composition
{"Image DocumentName": "Earth\u2019s Layers by Composition", "Image ImageDescription": "Core. Below the mantle; at the center of Earth. Makes up 1/3 of Earth\u2019s mass. Composed primarily of iron and nickel. Almost no oxygen, silicon, aluminum, or magnesium. Heats the mantle by convection.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}