Seismic Waves

It is the energy radiated in all directions from the focus due to earthquake.

In what order do the three types of seismic waves arrive at a seismograph?

It is the main type of wave that can travel through the earth's inner layer.

It is a shear wave that moves rock particles up and down, or side-to-side - perpendicular to the direction that the wave is traveling in.

What is transferred from place to place by waves?

It is the type of wave arrives first during an earthquake. 

What do seismic waves help scientists prove?

The point where the earthquake begins.

How did scientists discover the layers of the earth?

It is the only liquid layer of the Earth