lava

Lava is molten rock that erupts from a volcano during an eruption. It is extremely hot, often between 1,300 and 2,200 degrees Fahrenheit (700 to 1,200 degrees Celsius). Once it flows out of the volcano, lava moves slowly or rapidly across land, depending on its composition and temperature. As it cools, it hardens into solid rock, forming new landforms. Lava releases gases as it erupts, which can influence the eruption's behavior. It is a key part of volcanic activity and plays a role in shaping Earth's surface over geological time.