Earth's middle layer
Mantle
Process that causes rocks to gradually break or crumble to create new soil
weathering
Scientist who studies the structure of the earth
Geologist
Weathering that occurs when natural acids cause the rock to break apart
chemical weathering
Type of weathering caused by ice, flowing water, or windblown sand
physical weathering
Earths innermost layer broken down into two sections
Core, outer core, inner core
Huge pieces of earth's crust that float on the upper mantle
plates
The study of the earth and its structure
geology
Earth's outer layer
crust
Boundary between the crust and the mantle
Moho
Underwater mountain ranges
mid-oceanic ridges