Fossils and the Law of Superposition

Front

What is a fossil?

Back

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

Front

What does the Law of Superposition state?

Back

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

Front

What is relative age?

Back

Relative age is the age of an object or event in comparison to another object or event, without determining its exact age.

Front

What is an example of relative age?

Back

You are older than your sibling.

Front

What type of rock is most commonly associated with fossils?

Back

Sedimentary rock is most commonly associated with fossils because it forms in layers and can preserve the remains of organisms.

Front

What can the discovery of shark fossils in a cave indicate?

Back

It indicates that the area used to be under an ocean, as sharks are marine creatures.

Front

What is an intrusion in geology?

Back

An intrusion is a body of igneous rock that forms when magma pushes into existing rock layers and solidifies.

Front

Which rock layer is the newest: Kaibab formation, Zoraster Granite, Redwall limestone, or Unkar group?

Back

Kaibab formation is the newest.

Front

What is the significance of studying fossils?

Back

Studying fossils helps scientists understand the history of life on Earth, including evolution and past environments.

Front

What is a sedimentary rock?

Back

Sedimentary rock is formed from the accumulation and compaction of mineral and organic particles, often containing fossils.