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Lava cools down and accumulates into rock as it reaches Earth's surface

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How does a volcanoes lava form a mountain?

Lava cools down and accumulates into rock as it reaches Earth's surface


What is melted rock that reaches Earths surface and forms extrusive and igneous rock when it cools?

a Obsidion rock


What forms in earths crust when molten material reaches the surface?

When molten material reaches the surface of the Earth, it can solidify into different forms depending on the speed of cooling. If it cools quickly, it forms extrusive igneous rocks like basalt. If it cools slowly underground, it forms intrusive igneous rocks like granite.


What igneous rock is melted rock that reaches earths surface and forms extrusive igneous rock when it cools?

a Obsidion rock


What happens when magma reaches the surface and cools?

it forms igneous rocks


Rock formed when magma cools on the earths surface?

ignious rock


What is magma called when it reaches the earth's surface?

Magma that reaches the Earth's surface is known as lava.


When volcano lava cools at the surface?

When magma cools at the surface of the Earth, it cools very quickly and hardens on the Earths crust. However, it continues flowing underneath, forming interesting textures.


What does magma harden into once it reaches earth's surface?

It hardens because it cools.


Does magma always reach the Earth's surface?

no sometimes it cools under earth's surface. that is called intrusive igneous rocks. when it reaches earth's surface and cools its called extrusive igneous rocks.


What is it called when magma slowly cools far beneath the earths surface?

An igneous intrusion.


What is rock that is formed when magma cools under earths surface?

Intrusive igeneus such as basalt