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Module 7: The Fossil Record

Teacher: M. McCarty
Across
Fossil record tells us that organisms do ________ over time
The vast majority of all fossils on this planet are the fossils of _______-________ organisms
Amphibians and ________ are found in the same 3 layers of the Grand Canyon
Amber is a resin that preserves the animal entombed but does not entirely stop the process of chemical __________
Spaces in which water can flow
From a living creature
Fossil ________ - the sum total of all discovered fossils
Fossil you get when a mold is filled in by sediments and the sediments harden
Molds are most commonly formed when the organism is _________
The present is the key to the past - The way things occur today is the same way it always has
Fossil record contains the remains of some organisms still __________ today
Not from a living creature
The conversion of organic material into rock
Creatures that live both in and out of water
Fossils of these are in many layers of the Grand Canyon
_________ substances are more likely to form molds and cast because they aren't as likely to be crushed
The preserved remains of a one-living organism
Type of fossil that you get when an organism gets buried in sediment and rock forms around it
Most fossils have been laid down by ___________
As carbonized remains are flat, you do not get information regarding the ____________
Down
Due to pressure, liquids are forced out, and chemical reactions occur to leave a thin, filmy residue composed mostly of carbon
A thick, slowly flowing liquid produced by plants that can harden into a solid
Trilobites were protected by a hard outer covering called an ___________
There are no ________ fossils below the Great Unconformity
The baby mammoth found in Siberia was intact because it was entombed in _____ and _____
Fossils of reptiles or mammals are very ________
The geology we see today is the result of processed that occured once in earth's past and will not be repeated
___________ Forest in Arizona contains a large concentration of petrified wood
Strange-looking fish with bony plates that are found in 1 layer of the Grand Canyon
Fossils give us information about what happened in the ________
A term applied to a species that was once living but now is not
Most fossils are found in ___________ rock.
This can be extracted from organisms encased in resin
One of the main events that formed geology according to catastrophists - Many fossils would have been produced
One of the events that formed our geological formations according to catastrophists - Very few fossils would have been produced
Petrification occurs when the organism is exposed to water containing _________
__________ fossils are the most carbonized fossils