Generally, its higher temperature. The temperature of a rising magma is generally higher than the temperature of its surrounding rocks. Because of its higher temperature, it is also lighter compared to the surrounding rocks (it has a lower density), so it rises.
Imagine a hot air balloon: it rises because the air inside the balloon is heated, heating the air lowers its density (makes it lighter). As long as the density of the air inside the balloon is lower than the density of the air outside the balloon, the balloon rises.
Magma once it reaches the earths surface is called lava.
Magma that reaches earth's surface is called lava.
Magma reaches the Earth's surface through a process called volcanic eruption. This occurs when pressure builds up underground and forces the magma to flow and eventually break through the Earth's surface. Once the magma reaches the surface, it is then called lava.
its magma before it reaches earths surface. lava is when its at earths surface
magma
Magma that reaches the Earth's surface is known as lava.
Magma once it reaches the earths surface is called lava.
Magma that reaches earth's surface is called lava.
Lava.
Magma reaches the Earth's surface through a process called volcanic eruption. This occurs when pressure builds up underground and forces the magma to flow and eventually break through the Earth's surface. Once the magma reaches the surface, it is then called lava.
Lava. Note: Magma cant erupt, volcanoes do. Magma is just the word for molten rock beneath the earths surface, lava is for molten rock above the earths surface.
its magma before it reaches earths surface. lava is when its at earths surface
That is correct. When magma travels from the mantle to the crust and reaches the surface, that is a volcano.
lava
it is called magma.
An intrusion.
lava