6.2.2 Rock Cycle Review (PAP)

Which of the following helps create both metamorphic and sedimentary rocks?

• cementation

• evaporation

• pressure

• heat

Answer explanation

Sedimentary rocks are created with pressure. Metamorphic rocks are created with both heat and pressure.

The three basic types of rocks are -

• igneous

• lithospheric

• sedimentary

• metamorphic

Tags

NGSS.MS-ESS1-4

Sedimentary rocks are formed when __________ is deposited in environments like rivers and streams.

• intrusive

• compaction

• sediment

• extrusive

Answer explanation

Sediments are the building blocks of sedimentary rocks.

Which force is responsible for changing an igneous rock into a sedimentary rock?

• extreme heat and pressure

• melting

• uplift

• weathering and erosion

Answer explanation

Weathering and erosion creates sediment. Sediments are the building blocks of sedimentary rocks.

Which force is responsible for changing a metamorphic rock into an igneous rock?

• extreme heat and pressure

• melting

• uplift

• weathering and erosion

Answer explanation

Igneous rocks are created from magma or lava. Magma/lava is created when a metamorphic rock melts.

Tags

NGSS.MS-ESS2-1

Which force is responsible for changing a sedimentary rock into a metamorphic rock?

• extreme heat and pressure

• melting

• uplift

• weathering and erosion

Answer explanation

As sediments are compacted and cemented together, they become buried deep beneath the Earth's surface. The weight (pressure) of the many layers above and the heat and pressure from the magma below will turn sedimentary rocks into metamorphic rocks.

Sedimentary rocks are changed to sediments by -

• weathering and erosion

• compaction

• cementation

• heat and pressure

Answer explanation

Weathering and erosion are the forces that break down rock into smaller pieces of sediment.

Igneous rocks form from __________ when it cools.

• magma

• lava

• sediment

• both magma and lava

Answer explanation

Igneous rocks are formed when magma cools below the Earth's surface, and igneous rocks are formed when lava cools above the Earth's surface.

Sedimentary rocks are -

• formed from magma

• a type of foliated igneous rock

• formed from changes in temperature and pressure

• formed when loose materials become pressed and cemented together

Tags

NGSS.MS-ESS1-4

Limestone is a sedimentary rock. During the rock cycle, limestone is changed into marble, a metamorphic rock. The processes that act on limestone and change it into marble are -

• weathering and erosion

• heat and pressure

• compacting and cementing

• melting, cooling, and hardening

Answer explanation

Heat and pressure are the forces that create metamorphic rocks.