The change that occurs when lava cools to rock is a physical change called solidification. As the lava loses heat energy, it transitions from a liquid state to a solid state, forming igneous rock.
When magma cools and solidifies after reaching the Earth's surface, it is called igneous rock.
Pahoehoe
Hot lava cooling and hardening is an example of a physical change in matter, specifically a process called solidification or crystallization. This occurs when the lava loses heat energy to its surroundings, causing the liquid rock to solidify and form solid rock structures.
Lava cools by transferring its heat energy to the surrounding air or solid surfaces. As it loses heat, it solidifies and forms solid rock. The rate at which lava cools depends on factors such as its viscosity, composition, and the local environment.
Magma is underground, when it reaches the surface it becomes lava. So solidified magma is really lava. The lava flow is the liquid lava as it goes down the mountain, when hard its just hardened lava. Magma is underground, when it reaches the surface it becomes lava. So solidified magma is really lava. The lava flow is the liquid lava as it goes down the mountain, when hard its just hardened lava.
Called freezing, or in the case of lava and some other things, solidifying.
pumice
The change that occurs when lava cools to rock is a physical change called solidification. As the lava loses heat energy, it transitions from a liquid state to a solid state, forming igneous rock.
Rocks are solid objects therefore they are solids. Lava is rock that has been melted in to a liquid therefore makeing lava a liquid.
lava
Ice. Liquid turns into a solid when it freezes, so water turns into ice.
When hot lava cools and hardens, it undergoes a process called solidification. As the lava loses heat, it transitions from a molten state to a solid state. During this process, the lava solidifies into rock, forming igneous rock formations such as basalt, granite, or obsidian.
Molten rock above ground is called lava. It is molten rock that flows out of a volcano during an eruption and cools to form solid rock. Lava can vary in temperature, viscosity, and composition depending on the type of volcano.
The molten lava solidifies into solid rock on cooling.
Lava is a liquid although some parts of it may have already solidified.
Lava is only actually called Lava when it comes out of the earth. Before that when it is inside the earth, it is refered to as Magma. So, when boiling hot Magma breaks through the earth it becomes Lava and cools forming a black, hard, rock-like substance. :)