Rock Cycle Review for Mod 2

Which of the following statements about rocks is true?

• Rocks never change once they form

• Rocks change rapidly and visibly every day

• Rocks are constantly changing, though usually slowly

• Rocks are only formed during earthquakes

What is the main difference between intrusive and extrusive igneous rocks?

• Intrusive rocks are always heavier than extrusive rocks

• Extrusive rocks cool underground, while intrusive rocks cool on the surface

• Intrusive rocks cool underground, while extrusive rocks cool on the surface

• There is no difference between intrusive and extrusive rocks

What happens during the compaction and cementation step of the rock cycle?

• Rocks are melted into magma

• Rock particles are glued together under pressure

• Lava flows from a volcano

• Rocks are broken down by wind

Which process involves the breakdown of rocks by wind, water, or ice, while the particles stay in place?

• Erosion

• Transportation

• Weathering

• Deposition

What is the final step in the rock cycle before it starts over again?

• Transportation

• Rock melting into magma

• Weathering

• Deposition

When does erosion occur in the rock cycle?

• When rock particles stay in place

• When magma erupts from a volcano

• When rock particles are carried away

• When rocks melt underground

Where does metamorphism most often occur?

• In riverbeds

• Where tectonic plates collide

• Near the earth’s surface

• Inside volcanoes

What two steps transform sediment into sedimentary rock?

• Weathering and erosion

• Compaction and cementation

• Metamorphism and melting

• Melting and cooling

Which example best describes compaction?

• Melting and cooling

• Layers of sediment building up

• High heat and pressure over time

• Exposure to air and sunlight

What happens during metamorphism?

• Sediment layers harden

• Rocks melt into lava

• Rocks are exposed to heat and pressure underground

• Rocks are weathered and eroded