Earth History Crossword
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
 
 
Down: 1) Scientists who study fossils2) Conditions and organisms on Earth change in quick, violent events3) Represents species that existed on Earth for a short length of time, were abundant, and widespread.5) Geologic processes that occur today are similar to those that have occurred in the past.7) Fossilized evidence of the activity of organisms. Across: 4) The fossils carbon outline of an organism or part of the organism.6) The spaces inside of fossils are filled with minerals from ground water.8) The impression in a rock left by an ancient organism.9) Remains, imprints, or traces of prehistoric organisms.10) A copy of the original organism usually made from sediment
 

 

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