M + M LC1 Review

Front

What is a mass extinction?

Back

The extinction of many types of organisms at the same time.

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What is a fault?

Back

A break in Earth's crust.

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What is a fossil?

Back

The hardened remains of a living thing that died long ago.

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What type of fossil is a trace fossil?

Back

A fossil that shows evidence of the activity of an organism, such as footprints or burrows.

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What is an index fossil?

Back

A fossil that is used to define and identify a particular time period in the geological time scale.

Front

What is the difference between an intrusion and an extrusion?

Back

An intrusion is magma that cools and solidifies within the Earth's crust, while an extrusion is lava that erupts onto the Earth's surface.

Front

What does it mean for a species to be extinct?

Back

A species is extinct when there are no remaining individuals alive.

Front

What is the significance of fossils in understanding Earth's history?

Back

Fossils provide evidence of past life and help scientists understand the evolution of species and changes in the environment.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is the rock cycle?

Back

The continuous process of rock formation and transformation between igneous, sedimentary, and metamorphic rocks.