That was before May 18, 1980 when almost 1,400 feet of the mountain disappeared during a series of violent explosions and eruptions. At right is Mount Adams, another mountain formed by a volcano.

Scientists can use modern rocks, moon samples and meteorites to figure out when and how the Earth and moon formed, and what they might once have looked like.

Valen Edwards was found guilty on two counts of possession of obscene matter, one count of dissemination of obscene matter, and one count of electronic solicitation of a child.

KS2 Numberblocks - Times tables Learn how much fun counting can be with the Numberblocks – a fun-loving group of numbers who work together to solve problems big and small.