Rock Cycle Higher Level

What is a way that a Sedimentary Rock can become an Igneous Rock?

• It is weathered, eroded and then compacted and cemented

• It changes into an metamorphic rock, melts and then cools.

• It is pushed to the surface and dries out

• It becomes very hot, deforms and then cools

How might an igneous rock become a metamorphic rock

• It is cooled, exposed to freezing temperatures and cracks.

• It is pushed deep underground where it melts and then cools after being pushed back toward the surface.

• It is buried deep under the Earth where it is subjected to high heat and intense pressure.

• It is moved by gravity into a deep body of water where it slowly breaks apart.

Weathering and erosion form what type of rock

• Intrusive Igneous rock

• Extrusive Igneous rock

• Clastic Sedimentary rock

• Banded Metamorphic Rock

Under what conditions might a metamorphic rock become a sedimentary rock?

• There are no conditions when this can happen.

• The rock is melted by intense heat and pressure and then pushed to the surface where it cools and then over time it is pushed back into the earth where it is subjected to intense heat and pressure.

• The rock is pushed deep in the earth where it melts, then it is pushed toward the surface where it cools and becomes and igneous rock. That rock is then exposed to weathering where it breaks into pieces and deposits eventually compacting and cementing.

How is an intrusive igneous rock changed to into a sedimentary rock?

• magma is forced out of a chamber onto the surface of the earth where it cools and forms large crystals and then is deposited at the bottom of a lake.

• Lava cools after being ejected from a volcano and is then eroded by water and wind to form sediments that eventually settle at the bottom of a valley where they are compacted and cemented over time to form rock.

• Magma cools in a chamber below ground and is eventually exposed to surface conditions where it breaks into pieces, settles in a lake, and those pieces are compacted and cemented to form rock over a long period of time.

What conditions does an igneous rock need to form large grain crystals?

• It needs to cool very fast.

• it needs to cool slowly over time.

• it needs to be deep under ground and surrounded by water.

• it needs to be under intense pressure.

How might sediments become an igneous rock?

• They are subjected to intense heat and pressure and they combine to form an igneous rock.

• They are deposited, compacted and cemented over time and eventually are pushed deep in the earth where they melt and become magma that eventually cools forming an igneous rock

• They are weathered and eroded over time eventually being compacted and cemented together and becoming igneous rock.

• The sediments are chemically altered and combine in large patterns to form a crystalline structure and form igneous rock.

How is a glassy texture formed?

• Lava cooling slowly

• Metamorphic rock polished by wind

• Magma cooling quickly

• Lava cooling quickly

What are the main ingredients for creating a metamorphic rock?

• Weathering and Erosion

• Texture and composition

• Heat and Pressure

• Compaction and Cementation

Which of the following is true?

• magma cools and forms igneous rock which is weathered and eroded into sediments which are heated and pressurized to form sedimentary rock.

• Metamorphic rock is melted into magma which flows to the surface where it cools and becomes a sedimentary rock.

• Igneous rock is weathered and eroded into sediments that deposit, compact and cement together forming a sedimentary rock.

• Sediments are compacted and cemented together to form sedimentary rock which is then weathered and eroded to form metamorphic rock.