Check Your Understanding

How can geologists know what the interior of the Earth looks like when we can’t see it?

• Geologists use rocks at the surface to infer what the interior of the Earth looks like
• Geologists use a variety of method to “see” the interior of the Earth including the study of seismic waves and the magnetic field
• Geologists are able to sue core samples from drilling through the oceanic crust to see what the interior looks like