Volcanoes are really cool geologic episodes that happen when some of the molten rock under the earth's crust breaks through to the surface. Come to Kidspace and learn all about Igneous (volcanic) rock and find out what really happens both inside and outside of a volcano. See what obsidian, pumice and basalt look like. Find out what happened to Pompeii, Italy when Mt. Vesuvius erupted almost 2,000 years ago. And as a grand finale - you'll make a volcano. For ages six and up.