Igneous and Sedimentary Rocks

What are the classes of rock?

• School of Rock, Rock 'n Roll, Climb a Rock

• Igneous, Metamorphic, Sedimentary

• Molten Rock, Sediment, Igneous

• Sediment, Igneous, Metamorphic

What is the Rock Cycle?

• The process a rock goes through starts as sediment and becomes a sedimentary rock. Then, it turns into an igneous rock. Finally, it becomes a metamorphic rock.

• The process a rock goes through is a result of physical weathering to become a different rock.

• The process a rock may go through that will change it into another type of rock.

What does igneous rock become if heat is added and it melts?

• A new substance

• Sedimentary rock

• Sediment

• Metamorphic rock

• Magma or lava

What is sediment?

• Smaller rock

• A type of rock

• Dust particles

• What is left after magma or lava cools

The appearance of rock depends on its

• Mineralogy and texture

• Predominant mineral

• Environment of formation

• Degree of weathering

The rock cycle can be most accurately described by which order of events?

• Plutonism, uplift, weathering and erosion, burial and lithification, metamorphism

• Metamorphism, weathering and erosion, plutonism, uplift

• Uplift, metamorphism, burial and lithification, plutonism

• Weathering and erosion, plutonism, metamorphism, uplift

Uplift is most likely to occur in which of the following plate-tectonic settings?

• The divergent boundary at a mid-ocean ridge

• The subsidence of an oceanic plate

• Hot spot or mantle plume in the interior of a continent

• The convergent boundary where continents collide

Where is the oldest rock in the Grand Canyon?

• At the top

• In the middle

• At the bottom

• At the end

To what type of rock does the term ultramafic apply?

• The type that contains high concentrations of feldspar

• The type that contains the least silica

• The type that is high in phosphorus

• The type that is low in magnesium

Which descriptive word applies to an igneous rock that is high in feldspar and quartz?

• Felsic

• Mafic

• Plutonic

• Cherty