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Convection. Hotter equals rarer, colder equals denser. So the warmer material in the lower mantle and outer core rises through the cooler material in the outer mantle toward the crust, while the cooler material falls towards the core. They then cool and heat up respectively, and change positions. They then cycle around heating and cooling, rising and falling.
What else can I help you with?
Magma from deep inside earth rises toward the surface because?
Magma from deep inside the Earth rises toward the surface because of its lower density compared to the surrounding rocks, creating buoyancy forces that drive the magma upwards. Additionally, the pressure from gases within the magma can also contribute to its ascent.
Can density difference force magma upward into cooler layers of earths interior?
FALSE: gravity cannot force magma upwards, gravity can olny force downwars. the reason magma shoots from the earths interior is because the pressure from the magma trying to push through the force gravity causes an eruption.
Magma tends to rise toward earths surface?
Yes, magma tends to rise towards the earth's surface. It does so because once melted it becomes less dense.
Why does Magma tends to rise toward the Earth's surface?
Magma rises from the asthenosphere to the surface of the Earth. After it reaches temperature upward to 1000 degrees Fahrenheit, the magma starts to rise. Gases also aid in pushing the magma toward the surface, along with the tremendous pressure from the depth at which it originates.
Mountains formed by magma that reaches the Earths surface are?
Mountains formed by magma that reaches the Earth's surface are called volcanoes.
Could property of magma that cause it to be forced upward towards earth surface?
Because magma is less dense than the surrounding solid rock, it is forced upward toward the surface. When magma reaches the surface and flows from volcanoes, it is called lava.
Where does magma form before it moves toward the earths surface?
in the mantle above the slab
How magma moves upward though a volcano and reaches the surface during an eruption?
The inside of the earth (Mantle) pushes the hot magma liquid and makes the magma move toward the surface.
What causes magma to flow upward thought the earths surface?
The tectonic plates push together thus causing magma to shoot up and rise hence an eruption
Magma from deep inside earth rises toward the surface because?
Magma from deep inside the Earth rises toward the surface because of its lower density compared to the surrounding rocks, creating buoyancy forces that drive the magma upwards. Additionally, the pressure from gases within the magma can also contribute to its ascent.
What is the magma when it reaches the earths surface?
Magma that reaches the Earth's surface is known as lava.
What term refers to magma at the earths surface?
Magma once it reaches the earths surface is called lava.
Magma that reaches the earths surface?
Magma that reaches earth's surface is called lava.
What is magma that flows out on to earths surface?
Lava.
Can density difference force magma upward into cooler layers of earths interior?
FALSE: gravity cannot force magma upwards, gravity can olny force downwars. the reason magma shoots from the earths interior is because the pressure from the magma trying to push through the force gravity causes an eruption.
What is the name for magma that has erupted?
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.
Why does magma come to the surface?
Magma is less dense than the surrounding rock; as such, it will rise toward the surface.
