How Old Is The Earth

Circle T for True and F for False

1.   T  F   Scientists are almost always objective and report their findings in an unbiased manner
               without trying to influence public opinion.

2.   T  F   The existence of Niagara Falls is an indication that the North American continent is 
                less than 10,000 years old.

3.   T  F   The San Andreas fault moves at the rate of one to two inches per year.

4.   T  F   The San Andreas fault provides evidence that North America is probably less than
                5,000 years old.

5.   T  F   Short-period comets revolve around the sun once every 100 years or less.

6.   T  F   Short-period comets only last for a maximum of 10,000 years before they burn out.

7.   T  F    The existence of over 100 Short-period comets provides evidence that our solar  
         system is less than 10,000 years old.

8.   T  F   1400 years ago the earth’s magnetic field was twice as strong as it is today.

9.   T  F   The rapid decay of the earth’s magnetic field is an indication that the earth is not 
                much more than 10,000 years old.  

10. T  F   Helium is a byproduct of the radioactive decay of earth’s rocks.  

Bonus Questions:
1.  T  F    Assuming little or no helium in the atmosphere at creation, at current rates of 
                accumulation, the helium now present would build up in only 1.76 million years. 

2.  Stalactites have been known to grow at the rate of one ______ per year.  

3.  How old is the oldest living thing on Earth, and what significance does this have on the age
      of the earth debate?
      _____ years. _______________________________________________________.

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