Figure 8.5
Matching Earth Science Terms With Their Definitions

Terms	Definitions	
Core	The central part of the Earth below the mantle	
Crust	The outermost layer of the Earth	
Deposition	The process in which wind, water, and gravity move sediment to new places	
Igneous rock	A type of rock that forms from melted rocks that cool and harden	
Mantle	The thick, rocky part of the Earth that makes up 70% of the planet	
Metamorphic rock	A type of rock that forms because of changes caused by heat, pressure, or chemicals	
Sedimentary rock	A type of rock that forms when sediments harden