Relative & Radioactive Dating

The time it takes for 50% of the nuclei in a radioactive sample to decay to its stable isotope is called _____.

• the daughter product
• geologic time
• the half-life
• the half-time

Tags

NGSS.HS-PS1-8

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

Tags

NGSS.MS-ESS1-4

Which type of dating method can be used on rock layers by applying the Law of Superposition?

• relative dating
• absolute dating
• radioactive dating
• radiometric dating

Tags

NGSS.MS-ESS1-4

Earth elements decay and change into another element in a process called_____________.

• radiation

• isotope

• radioactive decay

• half-life

Tags

NGSS.HS-PS1-8

All organisms contain the element_________, so it is used to find the ages of fossils.

• carbon-14

• carbon-12

• carbon

• carbon age

Tags

NGSS.MS-LS4-1