What is the solid dense layer of the Earth?

Temperature and pressure increase toward the center of the Earth.

Which layer makes up most of the Earth's mass?

What layer of the Earth is divided into tectonic plates?

The crust is the Earth's only solid layer.

In which layer of the Earth are convection currents believed to occur?

What layer of the Earth is liquid?

What is the Earth's core believed to be made of?

What is the liquid layer called that lies beneath the mantle and surrounds the inner core?

What layer of the Earth is made of solid rock but flows very slowly?

This is the process in which hot materials rises while coal material sinks?

What layer is made up of the crust and the rigid, upper part of the mantle?

The inner core is primarily made of iron.

The soft layer in which the tectonic plates move is called?

What did scientists use to discover the layers of the Earth's interior?

The asthenosphere is the thinnest layer of the Earth.

What is the thickest part of a tectonis plate?

What properties does the oceanic crust have compared to the continental crust?

Where is the thinnest part of a tectonic plate?