Science Test Review

To describe a rock's texture, geologists determine

• the color and density of the rock.

• how the rock formed.

• the size, shape, and pattern of the rock’s grains.

• how many minerals the rock contains.

Rock that forms from the cooling of magma below the surface or lava at the surface is called

• sedimentary rock.

• metamorphic rock.

• course-grained rock.

• igneous rock.

Which type of rock forms when particles of other rocks or the remains of plants/animals are pressed and cemented together?

• sedimentary

• metamorphic

• extrusive

• igneous

When all the grains in a rock are large and easy to see, the rock is described as

• fine grained.

• coarse grained.

• extrusive.

• nonbanded.

Generally, a rock is made up of

• large crystals.

• a mixture of minerals and other materials.

• small crystals.

• a compound of several elements.

A rock high in silica will be...

• light in color

• dark in color

Heat and pressure deep beneath Earth's surface can change any rock into

• chemical rock.

• gemstones.

• metamorphic rock.

• sedimentary rock.

When all the grains in a rock are large and easy to see, the rock is described as

• fine grained.

• coarse grained.

• extrusive.

• nonbanded.

To describe a rock's texture, geologists determine

• the color and density of the rock.

• how the rock formed.

• the size, shape, and pattern of the rock's grain.

• how many minerals the rock contains.

Generally, a rock is made up of

• large crystals.

• a mixture of minerals and other materials.

• small crystals.

• a compound of several elements.