Chapter 5 Vocabulary Test Crossword
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
 
 
Down: 1) A principle that geologic processes that occurredin the past can be explained by current geologic processes2) Any method of determining whether an event or object is older or younger than other events or objects3) the death of every member of a species4) Any method of meauring the age of an event or object in years5) A principle that states that geologic change occurs suddenly6) The largest division of geologic time7) The scientific study of fossils9) A subdivision of geologic time that is longer than an age but shorter than an era11) A type of fossil that forms when sediments fill in the cavity left by a decomposed organism13) The trace or remains of an organism that ived long ago, most commony preserved in sedimentary rock. Across: 8) the standard method used to divide Earth's long natural history into manageable parts10) a fossilized mark that formed in sedimentary rock by movement of an animal on or within soft sediment12) the approximate age of fossils or other objects in rock layers determined by comparing whether the surrounding rock layers are younger or older14) An ordered arrangement of the rock layers that is based on the relative ages of the rocks and in which the oldest rocks are at the bottom
 

 

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