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Earth's Layers
| Term | Definition |
|---|---|
| Crust | The outer layer of Earth, which is up to 40 miles deep |
| density | the degree of compactness of a substance |
| fossils | the remains or impressions of a prehistoric organism preserved or petrified form or as a mold or cast in rock |
| Geological history | the science devoted to the study of the Earth, particularly the solid Earth and the rocks that compose it |
| Mantle | The region of the interior of the Earth between the core and the crust |
| Outer core | Fluid layer about 2,300 km thick and composed of iron and nickel that lies above Earth's solid inner core and below it's mantle |
| Relative Dating | Is the science of determining the relative order of past events |
| Rocks | The solid mineral forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil or oceans |
| Rock layers | One3 of a number of portions or divisions linked to levels; an allegory with many strata of meanings. A single bed of sedimentary, generally consisting of one kind of matter representing continuous deposition. |
| Timeline | A linear representation of important events in the order in which they occurred |
Created by:
mg071304*
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