Weathering - Weathering breaks down rocks on the surface of the Earth. There are three types of weathering (biological physical and chemical)., Erosion - Wind and water move the broken rock particles away. This is called erosion., Transportation and Deposition - Rivers and streams transport rock particles to other places. Rock particles are deposited in lakes and seas., Sedimentation - Rock particles form layers., Compaction and Cementation - Process involved in pressing the layers and sticking the particles together. This creates sedimentary rock., Heat and Pressure - Rocks underground get heated and put under pressure, and are changed into metamorphic rock., Melting and Cooling - Rocks underground that get heated so much they melt and turn into magma. Pressure can force magma out of the ground, creating a volcano. When the magma (lava) cools quickly, it turns into solid extrusive igneous rock. Magma that cools slowly underground forms solid intrusive igneous rock., Slow Uplifting - Areas of rock can move slowly upwards, pushed up by pressure of the rocks forming underneath. This is called uplift.,

Processes involved in forming rocks

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