Earth Layers

Front

Who is credited with developing the theory of continental drift?

Back

Alfred Wegener

Front

What two specific continents fit together most noticeably?

Back

South America and Africa

Front

What heats material in the mantle causing the convection cycle?

Back

The Earth's Core

Front

What process creates mountains?

Back

The Convection Cycle

Front

Which layer of Earth is the thickest?

Back

mantle

Front

Which of these layers is ALL solid iron and nickel? Options: inner core, outer core, lithosphere, mesosphere

Back

inner core

Front

Scientists think that convection currents that move the plates flow in Earth's

Back

Asthenosphere

Front

As you travel from the inner core to the crust, how would temperature, pressure and density of the material change?

Back

They would all decrease.

Front

The physical layer of Earth made of solid rock and soil is called the ___________. Options: mesosphere, lithosphere, asthenosphere, mantle

Back

lithosphere

Front

Where does the heat come from that drives this convection current in the mantle?

Back

the core