Earth History

The sinking of regions of the Earth's crust to a lower elevation is called what?

Stress that occurs when forces act to stretch an object is called what?

What is the name of the eon we live in?

 What is it called when rock changes shape because of stress?

A type of fossil that forms when sediments fill in the cavity left by a decomposed organism

The remains or physical evidence of an organism preserved by geologic processes

Which of the following is not a possible driving force of plate tectonics?

The largest division of geologic time is called what?

 States that the continents once formed a single landmass,and drifted to their present location

How fast do tectonics move?

The death of every member of a species is called what?

The process by which new oceanic lithosphere forms as magma rises surface and solidifes?

What can form when compression squeezes rocks at a convergent plate boundary?

A mark or cavity made in a sedimentary surface by a shell or other body is called what?

 States that younger rock lie above older rock if they have not been disturbed?

What is the scientific study of fossils called?

Molten rock that squeezes into existing rock and cools is called what?

A unit of geologic time that includes two or more periods is called what?

A unit of geologic time into which eras are divided are called what?

Ice cores help scientists do what?

A principle that states geologic change occurs suddenly is called what?

The standard method used to divide the Earth's long natural history into manageable parts?

A fossil found in rock layers that is used to establish the age of the rock layer

The process in which a radioactive isotope tends to break down into a stable isotope

A subdivision of a geologic period is called what?