Unit 4 Earth Science Review

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, causing earthquakes.

Front

Where do most volcanoes and earthquakes occur?

Back

Most volcanoes and earthquakes occur along tectonic plate boundaries.

Front

What is Pangaea?

Back

Pangaea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras, where all continents were joined together.

Front

What happens at a convergent boundary?

Back

At a convergent boundary, tectonic plates move towards each other, leading to the destruction or recycling of plate material back into the mantle.

Front

What is a mid-ocean ridge?

Back

A mid-ocean ridge is an underwater mountain range formed by plate tectonics, where new oceanic crust is created as plates diverge.

Front

Define a divergent boundary.

Back

A divergent boundary is where two tectonic plates move away from each other, leading to the formation of new crust.

Front

What is a subduction zone?

Back

A subduction zone is an area where one tectonic plate is being forced under another, often leading to volcanic activity.

Front

Explain the concept of plate tectonics.

Back

Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle, causing geological activity.

Front

What is the significance of tectonic plate boundaries?

Back

Tectonic plate boundaries are significant because they are the locations where most geological events, such as earthquakes and volcanic eruptions, occur.

Front

What is the difference between oceanic and continental plates?

Back

Oceanic plates are denser and thinner than continental plates, which are thicker and less dense.