states that geologic processes that happened in the past can be explained by current geologic processes.

are the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.

is a fossilized structure that formed in sedimentary rock by animal activity on or in soft sediment.

of an area describes the weather conditions in the area over a long period of time.

Scientists can drill down into icecaps to collect a long cylinder of ice, called an

Determining whether an object or event is older or younger than other objects or events is called

is the principle that states that younger rocks lie above older rocks if the layers have not been disturbed.

is a break in the geologic record that is made when rock layers are eroded or when sediment is not deposited for a long period of time.

are the traces or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.

is an ordered arrangement of rock layers that is based on the relative ages of the rocks, with the oldest rocks at the bottom of the column.

The breakdown of a radioactive isotope into a stable isotope of the same element or of another element is called

Determining the actual age of an event or object in years is called

The breakdown of a radioactive isotope into a stable isotope of the same element or of another element is called

Finding the absolute age of a sample by determining the relative percentages of a radioactive parent isotope and a stable daughter isotope is called

Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

unit 7

Question	Answer
uniformitarianism	states that geologic processes that happened in the past can be explained by current geologic processes.
fossil	are the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.
trace fossil	is a fossilized structure that formed in sedimentary rock by animal activity on or in soft sediment.
climate	of an area describes the weather conditions in the area over a long period of time.
ice core	Scientists can drill down into icecaps to collect a long cylinder of ice, called an
relative dating	Determining whether an object or event is older or younger than other objects or events is called
superposition	is the principle that states that younger rocks lie above older rocks if the layers have not been disturbed.
unconformity	is a break in the geologic record that is made when rock layers are eroded or when sediment is not deposited for a long period of time.
fossil	are the traces or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.
geologic column	is an ordered arrangement of rock layers that is based on the relative ages of the rocks, with the oldest rocks at the bottom of the column.
radioactive decay	The breakdown of a radioactive isotope into a stable isotope of the same element or of another element is called
absolute dating	Determining the actual age of an event or object in years is called
half-life	The breakdown of a radioactive isotope into a stable isotope of the same element or of another element is called
radiometric dating	Finding the absolute age of a sample by determining the relative percentages of a radioactive parent isotope and a stable daughter isotope is called

Created by: Summer piazza

"Know" box contains:
Time elapsed:
Retries: