The Mantle
This layer of the Earth is the thickest layer, making up about 84% of Earth‘s volume.
What is the mantle.
This layer of the core is the only part of Earth's interior that is completely liquid.
What is the outer core.
These waves, produced by earthquakes, are how scientists "see" the layers of the Earth.
What are seismic waves?
As you go deeper into the Earth, these two things consistently increase.
What are heat and pressure?
This is the thinnest and outermost layer of the Earth.
What is the crust?
This plastic like portion of the mantle helps the tectonic plates slide over it.
What is the asthenosphere.
The Earth’s core is primarily made of these two metallic elements.
What are iron and nickel.
These seismic waves can travel through both solids and liquids.
What are P-waves?
This supercontinent existed about 335 million years ago before the plates drifted apart.
What is Pangaea?
This type of crust is thicker but less dense, making up the world’s landmasses.
What is Continental crust?
These circular movements in the mantle are driven by heat and cause the movement of tectonic plates.
What are convection currents.
Despite extreme heat, this layer remains solid due to immense pressure.
What is the inner core.
These seismic waves cannot travel through liquids, proving the outer core is molten.
What are S-waves?
This is the name for the molten rock found inside the Earth.
What is magma?
This type of crust is thinner, denser, and found beneath the world’s oceans.
What is Oceanic Crust?
This rigid layer includes both the crust and the very uppermost part of the mantle.
What is the lithosphere.
The movement of liquid iron in the outer core creates this protective field around Earth.
What is Earth’s magnetic field.
This is the specific instrument used to record the vibrations of the Earth.
What is a seismograph?
This is the name of the theory that describes the large-scale motion of Earth's lithosphere.
What are plate tectonics?
This is the most abundant element found in the Earth's crust.
What is oxygen?