What is comparing two different places within the grand canyon is called
100
Mostly only Sedimentary rock layers
What is the type of rock would you most likely find fossils?
100
This tells us the number of years that individual lived.
What is growth rings
100
the largest bracket of time called
What is an Eon
?
100
information gathered directly by using one
or more of the five senses—seeing, touching, hearing,
tasting, smelling.
What is an observation
200
limestone, Sandstone and Shale
What are 3 types of Sedimentary Rocks
200
Less than 10%
What is the percentage that an organism will eventually
become a fossil?
200
The rocks were deposited at different times and represent part of the history of the Earth
What is layers in the rocks.
200
What refers to the fact that in a series of undisturbed rock layers the older layers will be on the bottom and the younger layers will be near the top
What is Law of superposition
200
a logical conclusion based on observations
and past experience.
What is an inference
300
Igneous, Metamorphic, Sedimentary
What are 3 phases of the rock cycle
300
These help paleontologists find rocks of the right age to search for answers to their questions.
What is Geologic maps
300
The animal living in the shell was preyed upon by another animal
What are teeth marks in fossil shells
300
a change in the plants and animals of that time
What so the periods on the geologic time scale represent?
300
ALL of the fossils that have existed throughout life’s history, whether they have been found or not
What is The Fossil Record
400
obsidian, granite, Basalt
What are 3 types of Igneous Rock
400
tar, amber or ice.
What is ways an organism can become a fossil without being buried in sediment.
400
This would indicate a mass extinction caused by a wide-ranging catastrophe
What is the extinction of many fossil species at the same time
400
__________means ancient life, ___________ means middle life and __________ refers to the time of recent life
Paleozoic, Mesozoic and Cenozoic
400
The concept that explains the movement of the Earth’s crustal plates, sea floor spreading, and a number of other geologic processes of the Earth’s surface.
What is Plate Techtonics
500
Schist, Marble, Gneiss, Quartzite, Slate
What are 3 types of Metamorphic Rock
500
This process protects an organism from biotic factors such as scavengers and decomposers, and from abiotic factors such as sun and wind, allowing the fossilization
process to begin.
What is Rapid Burial
500
the fossils and rock layers are the same age
If you found an index fossil in a layer of rock in Montana and a similar fossil in a layer of rock in England, you would know that
500
_________ tells us the order in which events occurred, from the earliest to the most recent. Knowing the actual date of an event allows us to say exactly how old something is or how long ago it actually took place
Relative Age
500
A vertical timeline representing events in Earth’s history. The Geologic Time Scale is divided into blocks of time that represent great changes in Earth’s biodiversity.