Relative & Absolute Dating AIR Review

Front

What type of rock is formed from heat and pressure over time?

Back

Metamorphic rock.

Front

Which layer is the oldest in geological terms?

Back

Layer E.

Front

What element is commonly used to date rocks?

Back

Uranium-238.

Front

What is the term for the time it takes for half of a radioactive sample to decay?

Back

Half-life.

Front

What occurs during radioactive decay?

Back

An unstable isotope of one element changes into a stable isotope of a different element.

Front

What type of rock is formed from the cooling and solidification of magma?

Back

Igneous rock.

Front

What type of rock is formed from the accumulation of sediment?

Back

Sedimentary rock.

Front

What is the process of determining the age of rocks and fossils called?

Back

Dating.

Front

What is the difference between relative dating and absolute dating?

Back

Relative dating determines the order of events, while absolute dating provides a specific age.

Front

What is an intrusion in geological terms?

Back

An intrusion is a body of igneous rock that has formed from magma that has cooled and solidified beneath the Earth's surface.