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Section 3.3 "Inside Earth"
A wide, gently-sloping mountain made of layers formed by quiet eruptions.
A steep, cone-shaped hill or mountain made of volcanic ash, cinders, and bombs piled up round a volcano's opening.
A tall, cone-shaped hill or mountain in which layers of lava alternate with layers of ash and other volcanic materials.
The large hole at the top of a volcano formed when the roof of a volcano's magma chamber collapses.
A deposit of hardened magma in a volcano's pipe.
A slab of volcanic rock formed when magma forces itself across rock layers.
A slab of volcanic rock formed when magma squeezes itself between layers of rock.
A mass of rock formed when a large body of magma cooled inside the crust.