Earth History Review

Front

What kind of rock are fossils found in?

Back

Fossils are primarily found in sedimentary rocks.

Front

What type of dating does Carbon-14 involve?

Back

Carbon-14 is used in absolute dating.

Front

What is the most accurate way of determining the age of a fossil?

Back

The most accurate way is through radioactive dating.

Front

What conclusion can be drawn if identical index fossils are found in rock layers from two different areas?

Back

The two rock layers were deposited at approximately the same time.

Tags

NGSS.MS-ESS1-4

Front

What can help determine the relative age of dinosaur bones?

Back

The index fossils in the area of the bones can help determine their relative age.

Tags

NGSS.MS-ESS1-4

Front

What are index fossils?

Back

Index fossils are fossils of organisms that were widespread but only existed for a short period of time, used to date rock layers.

Tags

NGSS.MS-LS4-1

Front

What is absolute dating?

Back

Absolute dating is a method used to determine the exact age of a rock or fossil in years.

Front

What is relative dating?

Back

Relative dating is a method used to determine the age of a rock or fossil in relation to other rocks or fossils.

Tags

NGSS.MS-ESS1-4

Front

What is radioactive dating?

Back

Radioactive dating is a technique used to date materials by comparing the abundance of a radioactive isotope to its decay products.

Tags

NGSS.HS-PS1-8

Front

Why are sedimentary rocks important for fossils?

Back

Sedimentary rocks form in layers and can preserve the remains of organisms, making them ideal for fossil formation.

Tags

NGSS.MS-ESS1-4