FORMATION
DATING and LAWS 1
DATING and LAWS 2
Misc.
The Geologic Time Scale
100
True or False: Is the formation of any fossil a common event?
False
100
True or False: Scientists can reconstruct the history of life on earth.
True
100
What is the calendar of Earth's history sometimes called?
Geologic Time Scale
100
Kind of ROCK formed FROM MELTED rock like Magma or Lava
Igneous
100
First SINGLE CELLED ORGANISMS
The Precambrian Time
200
How OLD IS THE EARTH?
A) 2021 years old
B) 4.6 Billion Years Old
C) 3.6 billion years old
D) 4.6 Million Years old
B) 4.6 Billion Years Old
200
Carbon -14 turning to Nitrogen is an example of this kind of dating
Radiometric
200
What is the most accurate way to determine a fossils age?
RADIOMETRIC Dating
200
The idea that rock layers at the bottom are oldest and the ones at the top are youngest
Law of Superposition
200
What era are FLOWERING PLANTS COMMON?
Cenozoic Era
300
There are several types of FOSSILS. What are these known as?
TRACE
300
What is the correct order
(put OLDEST on BOTTOM)
A
D
B
C
E
300
Which Rock is OLDER?
ROCK A
(had to be there first to 'swallow up" A
300
MAJOR theory why life explodes in the CAMBRIAN is because
Oxygen and Ozone (I will take either)
300
True or False: The precambrian Time covers the first 4 billion years of Earth's history.
True
400
Bone or Shell are typically replaced with this during fossilization
Minerals
400
True or False: Do all of the remains of an organism become fossils?
False
400
Fossils that help scientists QUICKLY Identify the age of a fossil or surrounding soil when found
INDEX FOSSILS
400
What kind of ROCK LAYER do we FIND FOSSILS?
Sediments
400
Era the DINOUSAURS FLOURISHED and STARTED WITH PANGEA
Mesozoic
500
What 2 main requirements are typical for a fossil to form. (think environmental factors)
Lack of OXYGEN and RAPID BURIAL
500
WHICH MAKES A GOOD INDEX FOSSIL?
Moth, Trilobite, or Shark tooth or NONE?
TRILOBITE
500
An element has a 1/2 life of 50 years. What percentage of the orginal element would be left after 150 YEARS?
(draw picture if needed)
What is 1/8th (12.5%)
500
This TRILOBITE is an example of what MAJOR TYPE of FOSSIL?
MOLD
500
Name the Geologic Time Scale in order.
Precambrian Time, Paleozoic Era, Mesozoic Era, and Cenozoic Era