Science

Define the crust

• thin, solid, outermost layer

• thick, liquid, inner layer

• thick, solid, outermost layer

• thin, liquid, outermost layer

Define the mantle

• layer of rock between the crust and core

• liquid layer between lithosphere and asthenosphere

• liquid layer between crust and core

• layer of rock between the lithosphere and asthenosphere

Define core

• Layer of rock between earth's crust & core

• the thin and solid outermost layer of Earth above the mantle

• The central part of earth below the mantle

• middle part of eath

Pick the things that define crust

• low density silicates

• continental crust (thicker, less dense, older, made up mostly of granite)

• Oceanic crust (thinner, more dense, younger, made up mostly of basalt)

• very dense

• contains mostly iron and nickel

Pick things that define mantle

• contains silicates as well as more dense materials like magnesium and iron

• contains mostly iron and nickel

• part of the inner core

• More dense than the crust

Choose the things that define the core

• part of the lithosphere

• contains mostly iron and nickel

• very dense

• low density

What layers are categorized by compostition

• Crust, mantle, core

• Lithosphere, asthenosphere, mesosphere, outer core, inner core

Pick the things that caused the formation of earth

• gravity

• erosion

• radioactive decay

• collisions

• depostions

What is this process called: melted material, rock and metal within earth was uniform. Gravity caused more dense materials to move toward center while less dense materials moved toward the surface. Results in a dense core with layers of different density surrounding the core.

• Differentiation

• Erosion

• Compostitional layers

• Mechanical layers

What mechanical layer is this: solid outer layer of earth that consists of the crust and the rigid upper layer of the mantle.

• crust

• lithosphere

• mantle

• asthenosphere