Monday, December 12, 2011

Earth Science Lesson 3 Content Practice B

                                                                                                                                              Absolute-Age Dating
Directions: Answer each question on the lines provided.
1.  What is meant by the absolute age of rock?
                                                                                                                                                          
                                                                                                                                                          

2.  What is an isotope?
                                                                                                                                                          
                                                                                                                                                          

3.  What happens to unstable isotopes?
                                                                                                                                                          

4.  What happens during radioactive decay?
                                                                                                                                                          
                                                                                                                                                          

5.  What is half-life?
                                                                                                                                                          
                                                                                                                                                          

6.  What is radiocarbon dating?
                                                                                                                                                          
                                                                                                                                                          
                                                                                                                                                          

7.  Which rock is radiometric dating most useful with? Why?
                                                                                                                                                          
                                                                                                                                                          



                                                                                                              

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