Earth Science Rocks Unit Test Review

Front

What is erosion?

Back

The movement of weathered material (sediment) from one location to another.

Front

What does 'Chemical Composition' mean in relation to minerals?

Back

It refers to the specific elements that a mineral contains in exact proportions.

Front

What is the difference between cleavage and fracture in minerals?

Back

Cleavage is the tendency of a mineral to break along flat surfaces, while fracture describes an irregular break.

Front

Define igneous rock.

Back

Rock that forms when melted, or molten rock from deep below Earth's surface cools and hardens.

Front

What is metamorphism?

Back

The process that changes existing rocks into new types of rocks through heat, pressure, or chemical processes.

Front

What is sedimentary layering?

Back

The process where sediments accumulate in layers over time, often leading to the formation of sedimentary rocks.

Front

What is the role of magma in rock formation?

Back

Magma can intrude into existing rocks and, upon cooling, can form igneous rocks.

Front

What is the definition of weathering?

Back

The process of breaking down rocks and minerals into smaller pieces by natural forces.

Front

What is deposition in the context of geology?

Back

The process where sediments are laid down in new locations after being transported by erosion.

Front

What is the significance of crystal structure in minerals?

Back

It refers to the orderly arrangement of atoms in a mineral, which determines its physical properties.