Science

• Volcano: A mountain that can erupt with lava, ash, and gases
• Eruption: The release of magma, ash, and gases from a volcano
• Base: The bottom or lower part of a volcano
• Summit: The top or highest point of a volcano
• Slope: The incline or side of a volcano
• Lava: Molten rock expelled during an eruption
• Pyroclastic: Fragmented volcanic material expelled during an eruption
• Magma: Molten rock beneath the Earth's surface
• Crater: A bowl-shaped depression at the top of a volcano
• Caldera: A large, crater-like depression often formed after a massive eruption
• Active: A volcano that has erupted recently or is currently erupting
• Inactive: A volcano that is not currently erupting
• Phreatomagmatic: Explosive eruption involving interaction with water
• Phreatic: Explosive eruption without new magma involvement
• Strombolian: Mild to moderate volcanic eruptions with frequent lava bursts
• Vulcanian: Explosive eruptions with ash clouds and pyroclastic flows
• Plinian: Extremely explosive eruptions with high ash columns
• Cinder: Small volcanic fragments ejected during an eruption
• Composite: Volcano composed of layers of lava and ash
• Shield: Broad, gently sloping volcano built by low-viscosity lava