M + M LC1 Review

Front

What is the oldest rock type in a cross-section?

Back

The oldest rock type is typically found at the bottom of the cross-section.

Front

What is relative dating in geology?

Back

Relative dating is the method of placing rock layers in order from oldest to youngest without determining their exact age.

Front

Where do most fossils form?

Back

Most fossils form from animals or plants that once lived in or near water.

Front

What factors help an organism become fossilized?

Back

Factors include having a shell or skeleton and being buried quickly with sediment.

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

What is the significance of rock layers in geology?

Back

Rock layers provide information about the Earth's history and the age of the rocks.

Front

What are the three main types of rocks?

Back

The three main types of rocks are igneous, sedimentary, and metamorphic.

Front

How do geologists determine the age of rocks?

Back

Geologists can use relative dating, absolute dating, and the study of rock layers.

Front

What is the role of sediment in fossilization?

Back

Sediment helps to protect and preserve the remains of organisms, facilitating fossilization.

Front

What is the difference between absolute dating and relative dating?

Back

Absolute dating provides a specific age of a rock, while relative dating places rocks in chronological order.