The molten rocks present in the interior of the earth’s mantle is known as magma. The interior temperature of the earth is very high, which melts the rocks present in the mantle. The molten rocks when extrude through the vent of the volcano are known as lava. In other words lava before ejection is known as magma.
Like solid rocks, magma is a mixture of minerals and rocks, However, a small amount of gases and liquids is mixed with the magma.