Front

How does sedimentary rock usually form?

Back

Sedimentary rock usually forms horizontally.

Front

What is an example of Uniformitarianism?

Back

An example of Uniformitarianism is that volcanoes erupt the same now as in the past, earthquakes happen the same now as they did in the past, and the earth's plates continue to move and shift.

Front

What is the best reason that fossil #4 is NOT a good index fossil?

Back

It is not short-lived (in numerous layers).

Front

Which of the following is an example of relative dating?

Back

Comparing the age of a rock layer to another.

Front

Which type of dating method can be used on rock layers by applying the Law of Superposition?

Back

Relative dating.

Front

What is relative dating?

Back

Relative dating is a method used to determine the age of rocks and fossils in relation to one another.

Front

What is absolute dating?

Back

Absolute dating is a method used to determine the exact age of a rock or fossil, often using radiometric techniques.

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 an index fossil?

Back

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

Front

Why are index fossils important in dating rocks?

Back

Index fossils are important because they help geologists correlate the age of rock layers across different locations.