7.2 Volcanoes/Plate Tectonics

Front

What is a divergent boundary?

Back

A divergent boundary is a type of tectonic plate boundary where two plates move away from each other, leading to the formation of new oceanic crust as magma rises to the surface.

Front

What is a convergent boundary?

Back

A convergent boundary is a type of tectonic plate boundary where two plates collide or move towards each other, often resulting in one plate being forced beneath the other, leading to subduction.

Front

What is magma?

Back

Magma is molten rock located beneath the Earth's surface. It forms when rock in the mantle melts due to high temperatures and pressure.

Front

What is lava?

Back

Lava is molten rock that has erupted onto the Earth's surface. It is formed when magma rises through the crust and reaches the surface.

Front

What is the Mid-Atlantic Ridge?

Back

The Mid-Atlantic Ridge is a divergent boundary located in the Atlantic Ocean where the Eurasian and North American plates are moving apart, creating new oceanic crust.

Front

What happens to lava after it erupts?

Back

After lava erupts, it flows across the surface, releasing thermal energy into the environment and eventually cools to form solid rock.

Front

What is the process of subduction?

Back

Subduction is the process where one tectonic plate is forced under another plate, often leading to volcanic activity and the formation of mountain ranges.

Front

What is the role of thermal energy in magma formation?

Back

Thermal energy from the Earth's mantle heats the rock in the crust, causing it to melt and form magma.

Front

What is a transform boundary?

Back

A transform boundary is a type of tectonic plate boundary where two plates slide past each other horizontally, often causing earthquakes.

Front

What is volcanic ash?

Back

Volcanic ash is tiny fragments of rock and glass that are ejected into the air during a volcanic eruption.