When molten rock cools and solidifies what rock is formed?

Answer 1

Magma that cools underground forms igneous rocks.

* It is called "lava" when it reaches the surface, and may solidify into several forms of igneous rock, depending on the compounds found in the magma and how it cools.

Answer 2

When molten rock cools and solidifies, it forms igneous rock. This process can occur both beneath the Earth's surface to form intrusive igneous rocks (such as granite) or on the Earth's surface to form extrusive igneous rocks (such as basalt).