Unit 3 Review

Front

What is the state of the Earth's outer core?

Back

The Earth's outer core is in a liquid state.

Front

What two layers make up the Earth's lithosphere?

Back

The lithosphere is made up of the crust and the uppermost part of the mantle.

Front

What causes tectonic plate movement in the Earth's mantle?

Back

Heat from the core causes magma to rise and cool, creating convection currents that move tectonic plates.

Front

What type of boundary does not create or destroy crust?

Back

A transform boundary does not create or destroy crust.

Front

What are the main characteristics of the Earth's inner core?

Back

The inner core is mostly iron, has the highest temperature and density, and is under the most pressure, making it solid.

Front

What is the composition of the Earth's outer core?

Back

The outer core is primarily composed of liquid iron and nickel.

Front

How does convection in the mantle affect the Earth's surface?

Back

Convection in the mantle drives the movement of tectonic plates, which can lead to earthquakes and volcanic activity.

Front

What is the difference between the lithosphere and the asthenosphere?

Back

The lithosphere is rigid and includes the crust and upper mantle, while the asthenosphere is semi-fluid and allows for the movement of tectonic plates.

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move apart, often creating new crust as magma rises to the surface.

Front

What is a convergent boundary?

Back

A convergent boundary is where two tectonic plates collide, which can lead to the formation of mountains or subduction zones.