Earth and Space 1

forms when melted rock cools and hardens

• igneous rock

• sedimentary rock

• metamorphic rock

rock that forms from hardened layers of sediment

• igneous rock

• sedimentary rock

• metamorphic rock

rock that forms when other kinds of rock are heated and squeezed

• igneous rock

• sedimentary rock

• metamorphic rock

the rocky layer of the outside of Earth

• crust

• mantle

• outer core

• inner core

the middle layer of the Earth; much thicker than the crust

• crust

• mantle

• outer core

• inner core

made up of very hot liquid iron and nickel found outside of the inner core

• crust

• mantle

• outer core

• inner core

the center of Earth and is made up of a hot ball of solid iron and nickel

• crust

• mantle

• outer core

• inner core