...Above,Below and on a Volcano
When It Erupts?
Above The Surface:
When a volcano erupts, lava, ash, cinders, dust, and hot gas may spurts out the top. Magma (when it's deep in the ground) or lava (when it reaches the earth's surface) is very hot, liquid rock. When the lava cools down, it turns into hard rock. Ash is a gray powder that results from material being burned in the volcano. Ash can be carried in the air for many miles.
Below The Surface:
Magma is forcing its way up to the surface through vents from magma chambers deep in the earth.
On The Surface:
The lava(magma) may reach the surface if enough pressure builds up inside it. The volcano may explode or implode on itself sending lava flying out into the air. But if there is not as much pressure then the lava will just pour smoothly down the side of the volcano.
