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  • Understanding the Rock Cycle: Rock Types and Processes
    The rock cycle doesn't operate with "five basic substances," but rather with three main rock types and the processes that transform them. These rock types are:

    1. Igneous Rocks: Formed from the cooling and solidification of molten rock (magma or lava).

    2. Sedimentary Rocks: Formed from the accumulation and cementation of sediments (fragments of other rocks, minerals, or organic matter).

    3. Metamorphic Rocks: Formed when existing rocks are transformed by heat, pressure, or chemical reactions without melting completely.

    The processes that drive the rock cycle are:

    * Magmatism: The formation and movement of magma, leading to the creation of igneous rocks.

    * Weathering & Erosion: The breakdown and transportation of rocks by natural forces like wind, water, and ice, contributing to the formation of sediments.

    * Sedimentation: The deposition of sediments in layers, eventually forming sedimentary rocks.

    * Metamorphism: The transformation of existing rocks due to heat, pressure, or chemical reactions, creating metamorphic rocks.

    * Plate Tectonics: The movement of Earth's tectonic plates, driving the processes of magmatism, weathering, erosion, and metamorphism, ultimately shaping the rock cycle.

    While there are many minerals present in these rocks, focusing on the five substances is not a standard way to understand the rock cycle.

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