How do ignenous rocks forma?

I learned this in earth science first it's a metamorphic rock the it goes through the melting process which then it forms magma then another process called solidification takes place and leads to an igneous rock

Igneous rocks are also formed when volcanoes erupt. Igneous rocks are formed as the lava cools above ground. The upper 16 km of the Earth's crust is composed of 95% igneous rock. Intrusive igneous rocks are formed from magma that cools and solidifies underground.