Earth Layers & Continental Drift

Front

What is the Earth's crust and upper portion of the mantle called?

Back

Lithosphere

Front

Who proposed the theory of continental drift?

Back

Alfred Wegener

Front

What is the liquid layer of the Earth located between the mantle and inner core?

Back

Outer Core

Front

What is the solid, innermost layer of the Earth?

Back

Inner Core

Front

The Earth's crust is broken into sections referred to as ______ plates.

Back

Tectonic plates

Front

What is the layer of the Earth that lies between the crust and the outer core?

Back

Mantle

Front

What are the slow movements of the Earth's lithosphere called?

Back

Tectonic movements

Front

What is the theory that explains the movement of continents over geological time?

Back

Continental Drift Theory

Front

What is the name of the supercontinent that existed millions of years ago?

Back

Pangaea

Front

What is the process by which new oceanic crust is formed at mid-ocean ridges?

Back

Seafloor Spreading