Understanding Metamorphic Rocks and the Rock Cycle

What is the primary factor that causes sedimentary rocks to transform into metamorphic rocks?

• Erosion by wind

• Pressure and heat

• Exposure to sunlight

• Freezing temperatures

Which type of metamorphism occurs over a large area with intense pressure?

• Thermal metamorphism

• Regional metamorphism

• Contact metamorphism

• Dynamic metamorphism

What is foliation in metamorphic rocks?

• The process of melting

• The cooling of magma

• The alignment of minerals into bands

• The breaking of rocks into sediments

Which rock is formed exclusively through contact metamorphism?

• Schist

• Marble

• Hornfels

• Slate

What happens to metamorphic rocks when they are subjected to enough heat and pressure?

• They evaporate

• They melt back into magma

• They become sedimentary rocks

• They turn into fossils