Earthquakes and Plate Tectonics

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and the uppermost part of the mantle.

Front

What is the asthenosphere?

Back

The asthenosphere is the semi-fluid layer of the mantle located beneath the lithosphere, allowing for the movement of tectonic plates.

Front

What is the mesosphere?

Back

The mesosphere is the solid layer of the mantle located below the asthenosphere, extending to the outer core.

Front

What is the outer core?

Back

The outer core is the liquid layer of the Earth's core, composed mainly of iron and nickel, and is responsible for 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 layer of Earth do we live on?

Back

We live on the crust, which is the outermost layer of the Earth.

Front

What is the focus of an earthquake?

Back

The focus of an earthquake is the point below Earth's surface where rock breaks, initiating the seismic waves.

Front

What are S-waves?

Back

S-waves, or secondary waves, are seismic waves that move through the Earth and can only travel through solids.

Front

What is magma?

Back

Magma is molten rock located beneath the Earth's surface that can cool and harden to form igneous rock.

Front

What happens to magma when it cools?

Back

When magma cools, it solidifies into igneous rock.