Earth Test

Front

What is the San Andreas Fault?

Back

A major fault line in California where the Pacific Plate and North American Plate slide past each other.

Front

What type of boundary is formed at Mount St. Helens?

Back

A convergent boundary where two tectonic plates collide.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and is forced into the mantle.

Front

What are convection currents?

Back

The movement of fluid caused by differences in temperature and density, often seen in the mantle.

Front

How do S-waves move through a medium?

Back

The material in an S-wave moves perpendicular to the direction the wave travels.

Front

What is the difference between P-waves and S-waves?

Back

P-waves are compressional waves that move parallel to the wave direction, while S-waves are shear waves that move perpendicular.

Front

What is a tectonic plate?

Back

A large slab of solid rock that makes up the Earth's lithosphere.

Front

What happens at a divergent boundary?

Back

Tectonic plates move apart, creating new crust as magma rises to the surface.

Front

What is the role of the asthenosphere in plate tectonics?

Back

The asthenosphere is a semi-fluid layer beneath the lithosphere that allows tectonic plates to move.

Front

What is an earthquake?

Back

A sudden release of energy in the Earth's crust that creates seismic waves.