FLASHCARDS SC.7.E.6.1A

Front

What causes convection currents in the mantle?

Back

Heat from the core causes mantle material to rise, cool, and sink, creating a cycle.

Front

How do mantle convection currents affect tectonic plates?

Back

Mantle convection moves tectonic plates, leading to earthquakes, volcanic eruptions, and continental drift.

Front

What would happen if mantle convection stopped?

Back

Tectonic plate movement would halt, preventing earthquakes, volcanoes, and continental drift. Earth's surface would become static over time.

Front

What role does the mantle play in geological activity?

Back

Heat-driven mantle movement causes volcanic eruptions, earthquakes, and mountain formation by shifting tectonic plates.

Front

Why is the mantle considered dynamic?

Back

The mantle is dynamic because of continuous heat flow and movement, which drives plate tectonics and geological change.

Front

How does mantle convection influence the rock cycle?

Back

Mantle convection contributes to the rock cycle by driving plate tectonics, which leads to the formation, destruction, and metamorphosis of rocks.

Front

What is the relationship between mantle convection and oceanic trenches?

Back

Mantle convection causes tectonic plates to move, leading to subduction where one plate sinks beneath another, forming oceanic trenches.

Front

How does mantle convection affect Earth's magnetic field?

Back

While mantle convection itself doesn't directly affect Earth's magnetic field, the movement of molten iron in the outer core, driven by heat from the mantle, generates the magnetic field.

Front

What is the role of mantle plumes in volcanic activity?

Back

Mantle plumes are upwellings of abnormally hot rock within the Earth's mantle that can cause volcanic activity when they reach the crust.

Front

How does mantle convection contribute to the formation of mountain ranges?

Back

Mantle convection drives the movement of tectonic plates, which can collide and push up the crust to form mountain ranges.