Flashcard on Earth's Layers

Front

What is the geosphere?

Back

The geosphere is the solid part of the Earth, including the crust and the interior layers, which is constantly moving and changing.

Front

What causes tectonic plates to move?

Back

Tectonic plates move due to heat flow from the Earth's interior, primarily caused by convection currents in the mantle.

Front

What is convection in the context of Earth's layers?

Back

Convection is the process where hot material rises and cooler material sinks, creating a cycle that drives the movement of tectonic plates.

Front

What is the composition of the outer core?

Back

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

Front

What is the difference between the lithosphere and the crust?

Back

The lithosphere includes the crust and the upper mantle, while the crust is the outermost layer of the Earth.

Front

What are volcanoes?

Back

Volcanoes are openings in the Earth's surface where molten rock, ash, and gases can escape from below the crust.

Front

How do mid-ocean ridges relate to lava flow?

Back

Lava flows out of mid-ocean ridges where the crust separates, allowing magma to rise and create new oceanic crust.

Front

What is the role of scientific research in understanding Earth?

Back

Scientific research helps update and refine our understanding of Earth's processes and layers as new evidence is discovered.

Front

What is a tectonic plate boundary?

Back

A tectonic plate boundary is the edge where two tectonic plates meet, which can be divergent, convergent, or transform.

Front

What happens during an earthquake?

Back

An earthquake occurs when stress along a fault line causes a sudden release of energy, resulting in ground shaking.