2.2/3 Geologic Processes & Dating

Front

What are tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact with each other, causing geological processes such as earthquakes and volcanic activity.

Front

What is the Law of Superposition?

Back

A principle stating that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What occurs at convergent boundaries?

Back

Tectonic plates push against each other, often leading to the formation of mountains, earthquakes, and volcanic activity.

Front

What is a model in science?

Back

A representation of an object or system that helps explain and predict how it works.

Front

How does a boiled egg model Earth's tectonic plates?

Back

The cracks on the eggshell represent tectonic plate boundaries, but it does not accurately show plate movement.

Front

What is the Earth's crust?

Back

The outermost layer of the Earth, composed of solid rock, where we live.

Front

What is the mantle?

Back

The layer of the Earth between the crust and the outer core, consisting of semi-solid rock that flows slowly.

Front

What is the outer core?

Back

The layer of the Earth beneath the mantle, composed of liquid iron and nickel.

Front

What is the inner core?

Back

The solid, innermost layer of the Earth, made primarily of iron and nickel.

Front

What geological feature is formed by tectonic plates converging?

Back

Mountains are often formed when tectonic plates push against each other.