Plate Tectonics Test REview

Front

List the layers of the Earth from most to least DENSE.

Back

D, C, B, A (where D = Inner Core, C = Outer Core, B = Mantle, A = Crust)

Front

What geologic feature/event would you most likely find at a convergent boundary between two pieces of oceanic crust?

Back

Volcanic Island Arc.

Front

In convection, what happens to the soft, cool rock as it becomes more dense?

Back

It sinks or falls.

Front

Why were magnetic patterns found on the ocean floor puzzling?

Back

They showed alternating bands of normal and reversed polarity.

Front

Which island is the oldest?

Back

A.

Front

What is the definition of a tectonic plate?

Back

A tectonic plate is a massive, irregularly shaped slab of solid rock that makes up the Earth's lithosphere.

Front

What occurs at a divergent boundary?

Back

At a divergent boundary, tectonic plates move apart, leading to the formation of new crust, often seen in mid-ocean ridges.

Front

What is subduction?

Back

Subduction is the process where one tectonic plate moves under another and sinks into the mantle.

Front

What is the significance of the Ring of Fire?

Back

The Ring of Fire is a major area in the Pacific Ocean where many earthquakes and volcanic eruptions occur due to tectonic plate movements.

Front

What is a transform boundary?

Back

A transform boundary is where two tectonic plates slide past each other horizontally.