Volcanoes
Focus
The beginning point of an earthquake
Delta
An area of sediment at the mouth of a river
Lava
When magma breaks the surface of the volcano
Humus
The particles of rocks and minerals with organic material
Tsunami
an earthquake occuring under the ocean that causes giant waves
Sediment
Small particles of weathering produced from rocks
Magma
Molten rock that comes out of an volcano when erupted
Glacier
Ice formations that erode huge amounts of sediment
Epicenter
The direct point above the focus
Deposition
When wind water or ice drops sediment in a new location