CHAPTER 8 VOCABULARY
REVIEW
QUIZ TODAY!!!
The remains or physical
evidence of an organism
preserved by geological
processes
FOSSIL
WORD DESCRIBING A
SPECIES THAT DIES OUT
EXTINCT
THE STANDARD METHOD OF
DIVIDING EARTH’S LONG
HISTORY INTO PARTS
GEOLOGIC TIME SCALE
ANY method of determining
whether an event or object is older
or younger than others.
RELATIVE DATING
FOR EXAMPLE:
A TRILOBITE IS OLDER THAN A TRICEROTOPS!
ANY method of measuring the age
of an object event in years, such as
using the atomic half-life.
ABSOLUTE DATING
December 14th, 1925,
February 1st, 1984
CARBON DATING
ATOMIC HALF-LIFE DATING
HOMONID that lived about
230,000
AUSTRALOPITHECINE
SCIENTISTS WHO USE FOSSILS TO
STUDY THE HISTORY OF LIFE
BEFORE HUMANS
palentologist
A NEW TYPE OF PROTHARYOTIC
ORGANISM THAT APPEARED
ABOUT 3 BILLION YEARS AGO
CYANOBACTERIA
THE THEORY THAT EXPLAINS HOW
LARGE PIECES OF THE EARTH’S
CRUST MOVE AND CHANGE
SHAPES
PLATE TECTONICS
THE ERA CALLED THE “AGE OF
REPTILES”
MESOZOIC ERA
THE ERA FOLLOWING THE
MESOZOIC; IT MEANS “RECENT
LIFE”
CENOZOIC ERA
• THE PERIOD FROM THE
FORMATION OF THE EARTH TO
524 MILLIONS YEARS AGO
PRECAMBRIAN TIME
THE REA FOLLOWING
PRECAMBRIAN TIME; IT MEANS
“ANCIENT LIFE.”
PALEOZOIC ERA
AN EVENT THAT MAY BE CAUSED
BY EXTREME CHANGES IN CLIMATE
MASS EXTINCTION
• WHAT CONTINENTS AND OCEANS
RIDE ON TOP OF
TECTONIC PLATES
TODAY IN SCIENCE
1. YOU WILL NEED YOUR OWN SHEET OF PAPER
2. PLEASE NUMBER IT 1-24
3. MAKE SURE YOUR NAME IS ON YOUR ANSWER
DOCUMENT!
4. HAND YOUR TEST INTO THE BLUE BIN, PUT YOUR
ANSWER SHEET INTO THE PURPLE BIN AND PICK UP AN
ARTICLE FROM THE CLEAR BIN.
5. AFTER THE QUIZ, COMPLETE CHAPTER 7 REVIEW
(FROM THE TEXTBOOK) Pgs. 186-187 # 1-23