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  • Magma vs. Lava: Understanding Earth's Molten Rock
    Melted rock is called magma when it's beneath the Earth's surface and lava when it erupts onto the surface.

    Here's a breakdown:

    * Magma:

    * Exists in underground chambers and can be found at various depths.

    * Extremely hot, ranging from 1,300°F to 2,100°F (700°C to 1,150°C).

    * Contains dissolved gases, minerals, and water vapor.

    * The pressure of the surrounding rocks keeps magma in a molten state.

    * Lava:

    * Magma that has erupted onto the Earth's surface.

    * Flows downhill due to gravity.

    * The exposure to air and the lower pressure cause some of the dissolved gases to escape, creating bubbles in the lava.

    * Cools and solidifies as it moves, forming volcanic rocks.

    Both magma and lava are crucial in the formation of various types of rocks and landforms, shaping the Earth's surface over time.

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