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Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal. Earth is the only planet in the solar system whose English name does not come from Greek or Roman mythology. The name was taken from Old English and Germanic. It simply means "the ground."
The crust is the outermost layer of the Earth. It is made from enormous plates of rocks. Some of the crust is covered by water – the oceans.
Aug 22, 2023 · The rock cycle is an integral aspect of Earth sciences that sheds light on Earth’s age, history, and the forces that shape it. Understanding the rock cycle is key to discerning how rocks change forms, contributing to soil fertility, and providing resources like minerals and fossil fuels.
The Earth is made up of four distinct layers: crust. is the outer layer of the earth. It is a thin layer between 5-70 km thick. The crust is the solid rock layer made of large slabs called...
Jan 25, 2019 · Underneath it lies the mantle, a layer of silicate rock approximately 2700 kilometers thick. The mantle accounts for the bulk of the Earth. The crust is composed of many different types of rocks that fall into three main categories: igneous, metamorphic and sedimentary.
- Andrew Alden
Oct 22, 2024 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. The three major classes of rock are igneous, sedimentary, and metamorphic rock.
Oct 20, 2023 · Earth's inner core is made of solid iron. Surrounding the inner core is a molten outer core. These two layers are very deep within Earth, separated from its crust by the thick mantle.