BJHS Science 8 - Plate Tectonics Retest

Front

What are tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact with each other, causing geological activity such as earthquakes and volcanic eruptions.

Front

What is the Earth's crust?

Back

The outermost layer of the Earth, which is the thinnest layer and consists of solid rock.

Front

What is convection current?

Back

A process where warmer, less dense material rises, while cooler, denser material sinks, creating a circular motion that transfers heat.

Front

What is the asthenosphere?

Back

A semi-fluid layer of the upper mantle beneath the lithosphere that allows tectonic plates to move.

Front

What is Pangea?

Back

A supercontinent that existed around 335 million years ago, where all the continents were joined together.

Front

What causes earthquakes?

Back

The sudden release of energy in the Earth's crust due to the movement of tectonic plates along fault lines.

Front

What is the Ring of Fire?

Back

A major area in the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur due to tectonic plate boundaries.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and sinks into the mantle.

Front

What is the difference between oceanic and continental crust?

Back

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

Front

What is the mantle?

Back

The layer of the Earth between the crust and the core, composed of semi-solid rock that flows slowly.