Where Do Rocks Come From?

The three big group of rocks are:

• igneous

• mantle

• metamorphic

• sedimentary

Earth has a hard outer layer called the __________.

Earth has a metal _____ in its center and mostly made of iron and nickel.

• cure

• corp

• core

The solid rock material between Earth's core and crust is called the _____.

A rock that forms when melted rock hardens.

• sedimentary rock

• igneous rock

• metamorphic rock

A rock that forms when layers of sediments get stuck together.

_____________ change from one kind of rock into another kind of rock.

• Igneous rocks

• Sedimentary rocks

• Metamorphic rocks

- melted rock below Earth's surface

- pieces of weathered rock such as sand, deposited by wind, water , and ice

• sidement

• sediment

• sedimint

The changes from igneous to sedimentary to metamorphic and back to igneous are the _________________.