The solid volcanic rock resulting from subsequent cooling of the molten material is often also called lava. A lava flow is an outpouring of lava during an effusive eruption. (An explosive …

Lava is made up of crystals, volcanic glass, and bubbles (volcanic gases). As magma gets closer to the surface and cools, it begins to crystallize minerals like olivine and form bubbles of …

Nov 25, 2025 · Lava, magma (molten rock) emerging as a liquid onto Earth’s surface. The term ‘lava’ is also used for the solidified rock formed by the cooling of a molten lava flow.

What Is Lava Made Of? Looking down at a cooled lava flow, you see a black, glassy, vesicular (“spongy”) rock. The black color comes from the magnesium and iron-rich minerals, which are …

Apr 12, 2025 · Lava is made up of crystals, volcanic glass, and gases, forming when magma rises to the surface during an eruption. This transformation from magma, which is molten rock …

Lava is made up of things called elements—the basic building blocks of everything in nature. Elements are like nature’s LEGO bricks, coming together to form rocks, trees, water, and even …

Jun 16, 2025 · Lava is molten rock that has erupted onto the Earth’s surface (or the surface of another planet or moon). This extrusive igneous rock, distinguished from magma (molten rock …