| A | B |
|---|
| Shield Volcano | common along divergent plate boundaries and ocean hot spots. They are large with gentle slopes and basaltic lava. |
| Composite Volcano | Large, steep-sided volcanoes that result from explosive eruptions of andesitic and rhyolitic lava along convergent plate boundaries. |
| Cinder Cone | small, steep-sided volcanoes that erupt gas and rich, basaltic lava. |
| Volcanic Ash | tiny particles of pulverized volcanic rock and glass-high into the atmosphere |
| Viscosity | a liquid's ability to flow |
| Volcano | a vent in the earth's crust through which melted or molten rock flow |
| Magma | molten rock BELOW earth's surface |
| Lava | molten rock that erupts onto earth's surface |
| Hot Spot | volcanoes that are not associated with plate boundaries |
| Ring of Fire | circle of volcanoes around the Pacific Ocean |
