Rock Cycle

Erosion and weathering can both cause changes to the surface of Earth. Which of the following happens only because of erosion and NOT because of weathering?

• Rocks form deep underground.

• Rocks become smooth and round.

• Rocks are broken apart into small pieces.

• Rocks are moved from one place to another.

Which of these BEST describes how an igneous rock forms?

• cooling of magma

• weathering of other rocks

• colliding of tectonic plates

• pressing together of smaller rocks

Which type of rock was MOST LIKELY formed by the Tennessee River over the last 100 million years?

• Igneous

• Sedimentary

• Mountainous

• Metamorphic

Which best describes one way igneous rocks form?

• Sedimentary rocks erode.

• Sedimentary rocks are compacted.

• Metamorphic rocks are melted, then cooled.

• Metamorphic rocks are deposited and cemented.

__________________rock forms when rock particles get pressed and cemented together.

• Igneous

• Sedimentary

• Mountainous

• Metamorphic

Why are most fossils found in sedimentary rocks?

• Sedimentary rocks are not very old.

• Organisms live only in areas with sedimentary

  rock

• Organisms can be preserved in sedimentary

  rock.

• Sedimentary rocks are found only at the

  surface of the ground.

Which process is best illustrated by the diagram?

• igneous rock formation

• sedimentary rock formation

• igneous rocks changing into metamorphic rocks

• sedimentary rocks changing into metamorphic rocks

Which statement is the best description of what

happens in the rock cycle?

• Rocks on old mountains are gradually weathered away, while mountain building and volcanism form new mountains.

• Once formed, rocks stay in place until rocks above them are weathered away and they reach the surface.

• As sedimentary rocks are buried deep below other rocks, they are changed by heat and pressure, eventually return to the surface, and are weathered again.

• Younger sedimentary rocks are always deposited on top of older metamorphic or igneous rocks.

A group of students found metamorphic rocks near a campsite. The presence of metamorphic rocks is most likely evidence of

• dinosaur activity

• sediment deposition

• high pressure

• wind-borne sand

Schist and quartzite are examples of metamorphic rocks. Which processes are necessary for the formation of metamorphic rocks?

• cooling and weathering

• cooling and pressure

• heating and pressure

• weathering and heating