Athinganfrorxlikeshinsoitskevrohayesansjake Crossword
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
 
 
Down: 1) Processed that occurs when the number of protons is changed and a new element is formed 2) Fossils or species that existed for a short period of time and was widespread3) Gaps in rock layers4) Method used to determine the order of events and the age of rocks 5) Process to determine the absolute ages if rocks by measuring the amounts of parent and daughter materials in a rock and by knowing the half-life of the parent8) Gaps in rock layers10) Cavity in rock made when an organism decays12) The time it takes for half of the atoms In an isotope to decay Across: 6) A method used to determine the age, in years, of a rock or other object7) States that in a sequence q undisturbed rocks the youngest are on the top and the oldest are on the bottom 9) Formed when original materials and skeletal remains are replaced by minerals 11) Produced when sediments fill in a cavity when objects decay13) Fossil of thin layer of carbon atoms and milecules14) State of species that no longer has living members15) Evidence such as remains, imprints, or traces of once-living organisms preserved in rock
 

 

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