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Actually, the molten rock is called lava. The magma from the magma chamber shoots up the main vent and when the magma reaches the vent, it will turn into lava. After that.. I don't have any idea..

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15y ago

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When the magma flows down the side of the volcano we call it?

lava!


What is a constructive boundarie?

At a constructive plate boundary two plates move apart. As they move apart the magma from the magma chamber flows up to fill the gap. This causes a volcano. However, as the magma can escape easily it flows down the volcano with only a little bit of force. So it has a gentle erupt.


How can you tell that Mount Fuji is a composite volcano rather than a shield volcano?

The volcano is very wide it means that it has mafic magma. The composite volcanoes have mafic magma in them. When the volcano erupts the lava flows down really fast, but hardens really slowly causing the volcano to widen its width size.


What is molten rock outside a Volcano on Earth's surface called?

Magma that reaches the surface it is called lava.Molten rock from the Earth's interior that breaks through to the surface is called lava


What are lava flows on a volcano?

A lava flow is where lava flows down the side of a volcano.


Is lava magma when it cools down?

No. Lava is magma that has reached the surface.


How does lava flow from Cinder Cone volcanos?

Lava flows from Cinder Cone volcanoes when pressure from the magma chamber beneath the volcano causes the magma to be forced up to the surface. The lava then flows out of the vent and down the sides of the volcano, often forming steep, narrow streams due to the high viscosity of the lava.


What is inside the volcano to erupt?

Magma is the substance inside volcanoes. If the melted igneous rocks are inside a volcano, it is called magma. When the substance exits the volcano, it is called lava. When you see fire, that is when a lava flow travels down a mountain and reacts with other mediums such as houses.


What makes a volcano explode for kids?

A volcano explodes when magma (what lava is called when it is underground) comes up with gas trapped in it. The gas can form bubbles in the magma that grow so quickly that it creates an explosion. The real word for this is "erupt" because not all eruptions have explosions. Sometimes the lava just oozes out from the weight of the rock pressing down on the magma.


What do volcanoes do when they errupt?

Boiling hot magma spurts out of the top and flows down the volcano's side, sometimes producing an ash cloud, like Eyjafjallajokull, Iceland in 2010.


What is melted rock that has been exposed to earths surface?

'Magma' while it is still in or below the Earth's surface and when it reaches or flows out on the Earth's surface it is called 'lava'. Magma from the 'magma' chamber can form a 'lava lake' at the surface and the lake can drain down the volcano in 'lava tubes' to form 'lava flows' or 'pillow lavas' if the lava tubes drain into the sea.


What is the solid magma core of a volcano called?

Magma is underground, when it reaches the surface it becomes lava. So solidified magma is really lava. The lava flow is the liquid lava as it goes down the mountain, when hard its just hardened lava. Magma is underground, when it reaches the surface it becomes lava. So solidified magma is really lava. The lava flow is the liquid lava as it goes down the mountain, when hard its just hardened lava.