Science Vocab 1
What is science
a subject
any method of of measuring the age of an event or object in years.
absolute dating
the time needed for half of a radioactive object to undergo radioactive decay to form the daughter isotope
halflife
Is science fun
geek yeah
A cylinder of ice used to study past climates.
Ice core
remains of an organism usually preserved in sedimentary rocks
fossil
Do the planets revolve around the sun?
Yes
an ordered arrangement of rocks usually in a column
geologic column
the study of the origin, history, and structure of earth
geology
What is it when a radioactive isotope breaks down
radioactive decay
describes the weather conditions in an area over a long period of time.
climate
the principle that states that rocks lower down are older than rocks above them
superposition
A break in the geologic record is...
uncomformity
fossilized structure that formed in sedimentary rock by animal activity or soft sediment.
trace fossil
any method of determining whether an event or object is older or younger than another
relative dating