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anna sience

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Term
Definition
amber   Hardened tree sap yellow to brown in color that can be a source of insect fossils  
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mold   An empty space in rock that once held the remains of a living thing  
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cast   A fossil formed or shaped within a mold  
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imprint   A fossil made by an impression  
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fossil fuel   A source of energy made from the remains of ancient once-living things  
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nonrenewable resourse   A natural material or source of energy that is useful to people and cannot be replaced easily  
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fossil   any evidence of an organism that lived in the past  
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renewable resourse   A useful material that is replaced quickly in nature  
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