Earth's Layers--Purple

Front

What layer of the Earth contains most of its mass?

Back

Mantle

Front

What are the two types of crust found on Earth?

Back

Oceanic crust and continental crust.

Front

Which layer of the Earth has the coolest temperatures?

Back

Crust.

Front

What is the solid layer of hard rock that includes the crust and the uppermost mantle called?

Back

Lithosphere.

Front

Which layer of the Earth is the densest?

Back

Inner core.

Front

What is the outermost layer of the Earth called?

Back

Crust.

Front

What is the primary composition of the Earth's mantle?

Back

Silicate minerals.

Front

What is the difference between oceanic crust and continental crust?

Back

Oceanic crust is thinner and denser, while continental crust is thicker and less dense.

Front

What is the temperature range of the Earth's crust?

Back

Approximately 0 to 1,000 degrees Celsius.

Front

What is the role of the lithosphere in plate tectonics?

Back

It is broken into tectonic plates that float on the semi-fluid asthenosphere.