Integrated Science 3 - Unit 1 & 2 Revision

Front

What is continental crust?

Back

The continental crust is the thick part of the Earth's crust that forms the continents. It is generally older and less dense than oceanic crust.

Front

What is oceanic crust?

Back

The oceanic crust is the thinner part of the Earth's crust that forms the ocean floors. It is generally younger and denser than continental crust.

Front

What occurs at a convergent boundary?

Back

At a convergent boundary, two tectonic plates move towards each other, often resulting in the formation of mountains, earthquakes, or volcanic activity.

Front

What is the significance of the Afar region in geology?

Back

The Afar region is significant because it suggests processes similar to those occurring at plate boundaries, indicating tectonic activity.

Front

What is radioactive decay?

Back

Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting radiation, leading to the transformation into a different element or isotope.

Front

How does temperature affect the mantle?

Back

Increasing temperature in the mantle causes mantle particles to move faster and occupy a larger volume, leading to convection currents.

Front

What is a rift?

Back

A rift is a linear zone where the Earth's crust is being pulled apart, often leading to the formation of new oceanic crust.

Front

What is a mountain range?

Back

A mountain range is a series of mountains connected by high ground, often formed by tectonic forces at convergent boundaries.

Front

What is the role of solar energy in geological processes?

Back

Solar energy drives surface processes such as weathering and erosion, but it does not directly influence geological processes like plate tectonics.

Front

What is the difference between density of continental and oceanic crust?

Back

Continental crust is less dense than oceanic crust, which is why it sits higher on the mantle.