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21 Cards in this Set
- Front
- Back
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Mold |
A hollow area in sediment in the shape or part of an organism. |
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Extinct |
An organism that no longer exists and will never again live on earth. |
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What process wears down and builds up earth's surface? |
Weathering, Erosion, and deposition. |
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What are the different kinds of fossils? |
molds and casts, petrified fossils, carbon films, and trace fossils. |
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Cast |
A solid copy of the shape of an organism. |
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What does the fossil record tell us about organisms and environment of the past? |
It provides evidence about the history of life and past environments on earth. Also shows how organisms have changed over time. |
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Erosion |
The process which natural forces move weathered rock from one place to another. |
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Deposition |
When the agents of erosion, deposition lay down sediment. |
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Mass movement |
Any process that moves sediment downhill. |
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Sediment |
Material moved by erosion. |
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Gravity |
The force that moves rock and other materials downhill. |
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Petrified Fossils |
Fossils in which minerals replace all of or part of an organism |
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Trace Fossils |
Type of fossil that preserves in the shape of ancient animals and plants. |
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What causes different types of mass movement? |
Landslides, mudflows, slumps, and creeps. |
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Sedimentary Rock |
The type of rock that is made up of hardened sediment. |
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Evolution |
The gradual change in living things over a long period of time. |
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How do fossils form? |
when living things die and are barred by sediments. The sediments slowly harden into rock and preserves the organism. |
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Carbon Film |
An extremely thin coating of carbon on rock. |
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Paleontologist |
People who study fossils |
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Fossil |
Preserved remains or traces of living things. |
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Scientfic Theroy |
A well tested concept that explains a wide range of observations. |
