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The scientific definition of energy is the ability to do work.<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref>
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The scientific definition of energy is the ability to do work.<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref>  In physics, energy is a conserved quantity, and a closed system of interacting particles is known to always have the same value for its energy; this is known as the law of conervation of energy.<ref>Halliday, Resnick, Walker: Fundamentals of Physics, 6th Edition</ref>
    
==References==
 
==References==

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