The time required for half of the parent isotope to decay into daughter isotopes.

• Absolute Age

• Relative Age

• Fossil

• Half-life

Tags

NGSS.HS-PS1-8

Geologic processes that occur today are similar to those who have occurred in the past

• Principle of Superposition

• Principle of Uniformitarianism

• Cross Cutting Relationships

• Absolute Dating

The age of rocks and geologic features compared with other rocks and features nearby.

• Relative Age

• Absolute Age

Tags

NGSS.HS-ESS1-5

Average numerical age, in years of a rock or object.

• Absolute Age

• Relative Age

Tags

NGSS.HS-ESS1-5

Represent species that existed on Earth for a short length of time, were abundant and inhabited many locations.

• Rocks

• Radioactive Decay

• Index Fossils

• Half-Life

Tags

NGSS.HS-ESS2-7

NGSS.HS-LS4-5

According to the graph, what fraction of the original parent isotope still exists after 3 half lives?

• 0,5000 g
• 0,2500 g
• 0,1250 g
• 0.0625 g

Tags

NGSS.HS-PS1-8

Using ESRT (A) [Radioactive Decay Data], what is the half-life in standard notation of carbon-14?

• 5,700 years
• 57,000 years
• 570,000 years
• 5,700,000 years

Tags

NGSS.HS-PS1-8

Using ESRT (A) [Radioactive Decay Data], what is the half-life in standard notation of Uranium-238?

• 4,500 years
• 450,000 years
• 4,500,000 years
• 4,500,000,000 years

Tags

NGSS.HS-PS1-8

The graph shows the radioactive decay of a 50-gram sample of a radioactive isotope. 
According to the graph, what is the half-life of this isotope? 

• 100 years
• 150 years
• 200 years
• 300 years

Tags

NGSS.HS-PS1-8

The graph shows the decay of a radioactive material over time. 
How long does it take for this radioactive material to decay through 2 half-lives? 

• 1 x 10³ years
• 5 x 10³ years
• 10 x 10³ years
• 40 x 10³ years

Tags

NGSS.HS-PS1-8