Test Review: Plate tectonics and Earthquakes

Front

What is the thinnest layer of the Earth?

Back

The crust is the thinnest layer of the Earth.

Front

What causes a volcano to erupt?

Back

A volcano erupts when pressure builds up.

Front

What type of boundary occurs when tectonic plates move away from each other?

Back

A divergent boundary.

Front

Which layer of the Earth is made of solid metal?

Back

The inner core is made of solid metal.

Front

What is a convection current?

Back

A convection current is formed when warm, less dense liquid rises while cool, more dense liquid sinks.

Front

What is the outer core primarily made of?

Back

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

Front

What is the mantle?

Back

The mantle is the thick layer of rock between the crust and the outer core.

Front

What is a tectonic plate?

Back

A tectonic plate is a large slab of solid rock that makes up the Earth's lithosphere.

Front

What happens at a convergent boundary?

Back

At a convergent boundary, tectonic plates move towards each other, often causing one plate to be forced below another.

Front

What is an earthquake?

Back

An earthquake is the shaking of the Earth's surface caused by the sudden release of energy in the Earth's lithosphere.