6.2 Review w/ Oceanic & Cont. Crust

Front

What are plate boundaries?

Back

Plate boundaries are the edges where two tectonic plates meet. They are the sites of significant geological activity, including earthquakes and volcanic eruptions.

Front

What is the Earth's crust?

Back

The Earth's crust is the outermost layer of the Earth, consisting of two types: oceanic crust (under oceans) and continental crust (under continents).

Front

What type of energy is released during an earthquake?

Back

Seismic energy is released during an earthquake, which travels through the Earth in the form of seismic waves.

Front

What are seismic waves?

Back

Seismic waves are waves of energy that travel through the Earth, generated by the sudden release of energy during an earthquake.

Front

What evidence do scientists use to study the Earth's interior?

Back

Scientists study the speed and behavior of seismic waves to gather information about the Earth's interior.

Front

Where do most earthquakes and volcanic activities occur?

Back

Most earthquakes and volcanic activities occur at plate boundaries.

Front

What is the mantle?

Back

The mantle is the layer of the Earth located between the crust and the outer core, composed of semi-solid rock that flows slowly.

Front

What is the outer core?

Back

The outer core is the layer of the Earth beneath the mantle, composed of liquid iron and nickel, responsible for generating the Earth's magnetic field.

Front

What is the inner core?

Back

The inner core is the solid innermost layer of the Earth, composed primarily of iron and nickel, and is extremely hot.

Front

What is the significance of volcanic rocks?

Back

Volcanic rocks provide information about the composition of the Earth's crust and the processes occurring within the Earth.