TERM 1
1 Geology
DEFINITION 1
The science that deals with the earth's physical structure and
its history
TERM 2
2 Geological Time Scale
DEFINITION 2
the period of time covering the formation and development
of Earth, especially the period before human history
TERM 3
3 Precambrian
Era
DEFINITION 3
4.6 BYA -540 MYA First era in Earth's history when Earth was
formed, along with its continents and oceans
TERM 4
4 Paleozoic
Era
DEFINITION 4
540 - 250 MYA Second major era in Earth's history when
plants appear for the first time and the "supercontinent"
Pangea forms
TERM 5
5 Mesozoic
Era
DEFINITION 5
250-65 MYA Third major era in Earth's history when
dinosaurs appear and there is more carbon dioxide, causing
plant life to increase
