I WONDER - What Is Magma?

The video explains that magma is liquid rock from volcanoes, which are mountains with craters. Active volcanoes can erupt, releasing magma and ash. Magma is so hot it flows like water and can cool to form land, including entire islands. When magma hits the ocean, it cools and creates new land, as seen in Hawaii, a volcanic island range.

Explain how the cooling of magma affects the environment around a volcano.

What is the significance of Hawaii in relation to volcanic activity?