OAT Rewind #4: Geology

Front

What is extinction?

Back

Extinction is the disappearance of a species from Earth, meaning that no individuals of that species are left.

Front

What is the order of rock layers from oldest to youngest?

Back

The order of rock layers from oldest to youngest is: Limestone, Siltstone, Fault, Basalt.

Front

What is absolute age in geology?

Back

Absolute age is the number of years that have passed since a rock formed, representing its actual age.

Front

What pattern do organisms show as you move up through geological layers?

Back

As you move up through geological layers, organisms become more complex.

Front

Which layer contains the oldest fossil?

Back

Layer 4 contains the oldest fossil.

Front

What is relative age?

Back

Relative age is the age of a rock or fossil in comparison to other rocks or fossils, without determining its exact age.

Front

What is the law of superposition?

Back

The law of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of ancient organisms, often found in sedimentary rock.

Front

What is a geological time scale?

Back

A geological time scale is a system of chronological dating that relates geological strata to time.

Front

What is a sedimentary rock?

Back

Sedimentary rock is formed by the accumulation and compaction of mineral and organic particles, often in layers.