| A | B |
|---|
| volcano | a vent in the earth that magma, gas, and ash can be ejected out of |
| dormant | a volcano that has not erupted in many years, but can still erupt |
| active | a volcano that is erupted or has recently erupted |
| extinct | a volcano that has not erupted in thousands of years and never will again |
| crater | when a volcano collapses in on itself and leaves a depression |
| vent | the open hole in the earth where the explosion happens |
| magma chamber | miles beneath the surface of the earth where magma builds up pressure before erupting |
| lava | magma that has erupted and is starting to cool |
| magma | melted rock |
| mantle | layer of the earth where rock melts to create magma |
| eruption | the ejection of volcanic matter into the atmosphere |
| fissures | cracks in the slope of the volcano |
| hot spot | a volcanic center in the middle of a plate that results in a volcano that erupts as the plate moves over time |
| ring of fire | region of volcanoes and earthquakes around the pacific ocean and its plates |
| conduit | passage or tube that magam travels from chamber to surface |
