Volcano Volcanoes are openings in the earth's crust that release molten rock.
Volcanic eruptions range from quiet flows of lava to violent explosions of ash, rocks, and gas.
There are active volcanoes all over the world, but PlanetDiary will feature the most explosive stories. Explore the subject of volcanoes further with this Volcano Activity . You can do it at this fun and informative site. Find out where you can visit volcanoes, which ones are erupting, and the location of the most devastating volcano in history. Teachers will find lesson plans about volcanoes, as well as interesting facts.