Quiz 3B

Rock that forms when layers of sediment are pressed together and harden is

• igneous

• metamorphic

• sedimentary

Rock that forms when melted rock cools is

• igneous

• metamorphic

• sedimentary

A solid material in nature that was never alive is called a

• mineral

• animal

• plant

Hard pieces of the earth's surface are called

• rocks

• fossils

• soil

Minerals that are easy to find are called

• common minerals

• gems

• precious minerals

Scientists classify rocks by how they are

• colored

• igneous

• formed

• shaped

Rocks that form when igneous or sedimentary rocks are changed by great heat and pressure are

• sedimentary rock

• metamorphic

• sedimentary