Study Guide 6-1 Earth’s Structure

How could the deep interior of Earth be mapped? The deep interior of Earth can be mapped using seismic waves

What does Continental and Oceanic Crust mostly consist of? Oxygen, silicon and aluminum

Define the following terms: Magnetic reversal Core Process by which Earth’s magnetic pole change places The central part of the Earth, below the mantle; The layer of Earth made mostly of iron

Define the following terms: Fossils Items that provide evidence that the continents were once close together

Define the following terms: Seismic waves Sea-floor spreading Vibrations produced by an earthquake Process by which new oceanic lithosphere form