Layers of Earth

The tectonic plates float on the 

This layer is completely liquid: crust, inner core, mantle, outer core

The core is made-up of what two elements?

The strong lower part of the mantle is a physical layer called the

This layer is solid & rigid

Which layer is made of the crust and upper mantle? Options: lithosphere, asthenosphere, mesosphere, outer core

The layer that the tectonic plates float on.

Made mostly of silicon, oxygen and aluminum. Options: inner core, outer core, crust, mantle

Which layer is made of liquid metal (Fe and Ni)?

Which layer is the thinnest? Options: crust, mantle, outer core, inner core