Unit 1 Test - Earth's Formation, Q2

TRUE or FALSE: Relative Rock Dating means knowing the actual, numerical, age of the rock.

• TRUE

• FALSE

Tags

NGSS.HS-ESS1-5

Why are index fossils so important?

• They don't have any importance

• They make the age of the rocks difficult to figure out

• They're interesting and pretty to look at

• They are the bridge between Relative and Absolute rock dating

Tags

NGSS.MS-ESS1-4

Carbon-14 decomposes into ​ (a)  

• Nitrogen-14
• Nitrogen-12
• Uranium
• Lead
• Argon
• Potassium

Tags

NGSS.HS-PS1-8

Uranium decomposes into ​ ​ (a)   , and Potassium decomposes into ​ (b)  

• Nitrogen-12
• Uranium
• Lead
• Argon
• Potassium

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Match the Parent % to the Daughter % when working with half-lives

• 0% Daughter

• 6.25% Parent

• 50% Daughter

• 100% Parent

• 93.75% Daughter

• 12.5% Parent

• 87.5% Daughter

• 25% Parent

• 75% Daughter

• 50% Parent

Tags

NGSS.HS-PS1-8

A rock sample is 2 half live's old, what percent of the sample is still parent?

• 100%

• 50%

• 25%

• 12.5%

• 6.25%

Match the Principle of Relative Rock Dating to the definition.

• The rock layers are older than the fault

• Principle of Cross-Cutting Relationships

• Rock layers are first deposited flat

• Principle of Intrusive Relationships

• The OLDEST rock layers are on the BOTTOM

• Principle of Original Horizontality

• Rock layers are older than the intrusion

• Principle of Superposition

​ (a)   is the process in which planets grew from space dust, to planetesimals to planets.

• Accretion
• Formation
• Evolution

TRUE or FALSE: A half-life is how long it takes for half of the daughter isotopes to decompose into parent isotopes.

• TRUE

• FALSE

Tags

NGSS.HS-PS1-8

How do we know the numerical age of rocks?

• Relative Rock Dating

• Radiometric Dating of rocks

• Rock Correlation Dating

• Rock dating, dinner and a movie