| Earth's Interior | |
| Earth's Layers - from Britannica Online |  |
| Temperature at the Center of the Earth | |
| Interior of the Earth | |
| The Interior of the Earth - from USGS | image from Britannica Online http://school.eb.com/comptons/article-199815 |
| Earth's Interior | |
| Earth's Layers - from Britannica Online | |
| Temperature at the Center of the Earth | |
| Interior of the Earth | |
| The Interior of the Earth - from USGS | image from Britannica Online http://school.eb.com/comptons/article-199815 |