Fossils
Rock layers
Geologic Time
Catastrophic
Fossil Type
100
How many years do it take for a fossil to be a fossil ?
10,000 Years
100
Layer C
100
Paleozoic Era Mesozoic Era Cenozoic Era Are examples of what ?
Precambrian
100
Each Era ends with a what ?
mass extinction
100
What type of fossil is this 
Mold fossil
200
Buried quickly and Hard body parts like shells or bones is a condition of ?
Fossil to form.
200
Before
200
The first named period?
Cambrian period
200
Name the Mass Extinction
trilobites,marine invertebrates,amphibians
200
What type of fossil is this 
Cast
300
what is the name of the scientists who studies fossils ?
PALEONTOLOGIST
300
What is a Fossil record?
A record that documents the existence, diversity, extinction, and change of many life forms throughout history, provides only relative dates, not an absolute scale.
300
Plants in the PALEOZOIC ERA theres 4
moss,ferns,cone, seed plants at end of era
300
Examples of Mass extinction ?
impact of asteroid or comet,climatic changes,volcanic activity
300
what is this
Mollusk-like marine animals
Appeared during the Cambrian (540 to 500 million years ago
Some examples still survive
BRACHIOPODS
400
What is a Index Fossils useful for ?
A specific fossil used to determine the relative age of a rock layer.
400
How do you classify an older rock layer?
States that each rock layer is older than the one above it.
400
Mesozoic Era Organisms
Reptiles,small mammals,birds
400
a violent & sudden change in a feature of earth
a violent & usually destructive natural event
Catastrophe
400
a group of hard-shelled animals whose body had three sections
TRILOBITES
500
something that does not tell the exact age of an object is what ?
Is a Relative age
500
BONUS ADD 600 name all the traits that help different species survive.
Color,Camouflage,Food gathering methods(beaks & claws)Sensory abilities,Behaviors
500
What is the name of a ice sheets and glaciers covered parts of earth
Ice Age
500
Name the consequences in catastrophic.
earthquake, flood, forest fire, hurricane, lightning, tornado, tsunami and volcanic
500
Which type of fossil was Common during Mesozoic Era
AMMONITES