Earth Science: Geologic History Review

Method of determining the age based on measuring radioactive elements (radiometric) 

• Radioactive Dating 
• Relative Age 
• Index Fossil 
• Law of Superposition 

Tags

NGSS.HS-PS1-8

Determination of the age of a rock based on the surrounding evidence 

• Radioactive Dating 
• Relative Age 
• Trace Fossil 
• Carbonized Fossil 

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS1-6

A common fossil found in many areas from a specific time; used to help identify the age of other formations. 

• Trace Fossil 
• Mold Fossil 
• Cast Fossil 
• Index Fossil 

Tags

NGSS.HS-LS4-5

In order to determine the relationship between fossils, the ages of the fossils need to be determined. Which process will most accurately determine the ages of two similar fossils?

• by using seismic waves

• by using radioactive dating

• by comparing the two fossils to index fossils

• by looking at the geographic locations where the fossils were found

What is the currently accepted age of Earth?

• about 4.6 million years old

• about 10 billion years old

• about 4.6 billion years old

• about 5.6 billion years old

Tags

NGSS.MS-ESS1-4

The time it takes for half of a radioactive isotopes to decay into stable isotopes is called the

• isotope decay
• radiometric dating
• half life
• absolute age

Tags

NGSS.HS-PS1-8

The best index fossils have which two traits?

• widespread geographically, long lifespan
• widespread geographically, short lifespan
• specific place, long lifespan
• specific place, short lifespan

Which fossil makes the best index fossil?

• Fossil 1
• Fossil 2
• Fossil 3
• None follow all of the rules

Does the picture represent relative or absolute dating?

• relative
• absolute

Tags

NGSS.MS-ESS1-4

Absolute age is determined by...

• the other rocks around it
• the law of superposition
• radiometric dating