Law of Superposition

Front

What does the Law of Superposition help scientists determine?

Back

The relative age of rock layers.

Front

What is the relative age of a rock?

Back

The age determined by the things around it.

Front

According to the Law of Superposition, where are the oldest fossils found?

Back

Near the bottom of the rock layers.

Front

Put the following layers in order from oldest to youngest: b, c, d, a, e.

Back

b, c, d, a, e.

Front

Which rock layer in the diagram seems to be the oldest: F, E, B, A?

Back

A.

Front

Define the Law of Superposition.

Back

In undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What is the significance of the Law of Superposition in geology?

Back

It helps geologists determine the relative ages of rock layers and the fossils within them.

Front

What is a sedimentary rock?

Back

A type of rock formed by the accumulation of sediments.

Front

What is the difference between relative age and absolute age?

Back

Relative age is the age of a rock compared to other rocks, while absolute age is the actual age in years.

Front

What is a fossil?

Back

The preserved remains or traces of ancient organisms.