LAW Review E.History

Front

What era did humans first appear in?

Back

Cenozoic Era

Front

What is the long span of time that begins geologic time?

Back

Precambrian Time

Front

What type of rock is formed from fragments of other rocks?

Back

Sedimentary Rock

Front

What is the term for the trace or remains of an organism that lived long ago?

Back

Fossil

Front

Which era is known for the age of dinosaurs?

Back

Mesozoic Era

Front

What is the geologic time scale?

Back

A system of chronological dating that relates geological strata to time.

Front

What are the three main types of rocks?

Back

Igneous, Sedimentary, Metamorphic

Front

What is an igneous rock?

Back

A type of rock that forms from the cooling and solidification of magma or lava.

Front

What is a metamorphic rock?

Back

A type of rock that has been changed by heat, pressure, or chemical processes.

Front

What is the significance of the fossil record?

Back

It provides evidence of past life and helps scientists understand the history of life on Earth.