Earth's Layers, Plates, Volcanoes and Earthquakes

The tectonic plates float on the 

• lithosphere
• lower mantle
• outer core
• asthenosphere

The part of the earth that includes the crust and the upper mantle and is split into tectonic plates is the

• lithosphere
•  crust
• asthenosphere
• mantle

The hottest layer

• crust
• inner core
• mantle
• outer core

The coolest layer

• crust
• inner core
• mantle
• outer core

The thinest layer

• crust
• inner core
• mantle
• outer core

The thickest layer

• crust
• inner core
• mantle
• outer core

The least dense layer

• crust
• inner core
• mantle
• outer core

The most dense layer

• crust
• inner core
• mantle
• outer core

This layer is completely liquid

• crust
• inner core
• mantle
• outer core

This layer is a mix between solid and liquid

• crust
• inner core
• mantle
• outer core