GEOLOGY

Detailed explanation-1: -The crater is the bowl shaped opening located at the top of the volcano. The crater is also the steep sided walls made of hardened lava that surround the main vent.

Detailed explanation-2: -Cinder cones are simple volcanoes which have a bowl-shaped crater at the summit and steep sides. They only grow to about a thousand feet, the size of a hill. They usually are created of eruptions from a single opening, unlike a strato-volcano or shield volcano which can erupt from many different openings.

Detailed explanation-3: -Crater-The mouth of a volcano, which surrounds the vent: One of the most exciting bits, when you look inside a volcano for kids, is the crater. In a crater, the mouth of a volcano, there is an opening to the magma chamber below. The shape of this opening can vary from circular to oval or elliptical.

Detailed explanation-4: -Calderas are collapse features that form during large-volume volcanic eruptions when the underlying magma chamber is partially emptied and the ground above it subsides into it.