Rocks

Which of the following does NOT change the form of existing rock?

• pressure
• extreme heat
• light
• chemical processes

Rocks that are formed quickly on the surface through the crystallization of magma are

• sedimentary rocks
• metamorphic rocks
• extrusive igneous rocks
• evaporites

Course grained rocks, such as granite, have large mineral crystals that are created by

• a low viscosity magma that cools slowly above the Earth's surface
• a highly viscous magma that cools quickly
• a slow lose of heat deep inside the crust
• a quick lose of heat at the Earth's surface

Which statement correctly describes the distribution of sedimentary rocks on Earth?

• Sedimentary rock layers are thickest in the middle of the oceans
• Sedimentary rocks extend down into Earth's crust as far as the inner core
• Sedimentary rocks usually form a thin layer over large areas of the continents

The metamorphism of a sandstone rock will cause the rock

• to be melted
• to contain more fossils
• to become more dense
• to occupy a greater volume

Large rock salt deposits (chemical sedimentary rocks) in the Death Valley area indicate that the area once had

• large forests
• a range of volcanic
• Many animals
• A warm, shallow sea

Most igneous rocks form by which processes?

• Melting and solidification
• heat and pressure
• erosion and deposition
• compaction and cementation

Most sedimentary rocks formed by which two processes?

• compaction and cementation
• uplift and melting
• extrusion and intrusion
• faulting and folding

Rock that forms from the cooling and solidification of magma beneath's Earth's surface is a

• Metamorphic rock
• Sedimentary Rock
• Intrusive igneous rock
• Extrusive igneous rock

Rock that forms from the cooling and solidification of lava at Earth's surface

• Intrusive igneous rock
• Extrusive igneous rock
• Metamorphic rock
• Sedimentary rock