"sound waves"
studying the earth
By studying how seismic waves travel through the Earth's interior.
seismic waves that travel through the earth
Geologists use evidence from seismic waves to learn about earth's interior. Geologists record the seismic waves and study how they travel through earth. By Brianna.
Geologists obtain evidence about the Earth's interior through methods such as studying seismic waves, analyzing rock samples from volcanoes and deep drilling, conducting laboratory experiments on high pressures and temperatures, and studying meteorites which originated in the Earth's interior. These methods help geologists to understand the composition, structure, and processes taking place in the Earth's interior.
Studying how seismic waves refract inside the earth and if they "cast shadows" indicating that some layers inside earth are opaque to some types of seismic waves. Seismic waves "illuminate" the interior of the earth like light waves illuminate a room, permitting what is there to be seen if you have the correct tools to observe them.
Most of the information about Earth's interior was obtained by studying seismic waves generated by earthquakes. These waves travel through the Earth and provide valuable insights into its structure and composition. Scientists also analyze rocks from volcanic eruptions and drill core samples to further understand Earth's interior.
geology
A non-geologist. How can an occupation have an "opposite" - what is the opposite of a doctor? A plumber?
A geologist studies rocks and what the earth is made of. A petrologist is someone who looks at rocks directly.
The speed of the waves that travel through the interior can tell the density of each layer of the Earth. Some waves can make it through certain layers, but not others.
layers