Energy

Energy makes everything happen.  Everything we do is connected to energy in one form or another. 

What is energy?  Energy is the ability to do work.  Work means moving something, lifting something, lighting something. . . 

Where does energy come from?  The diagram on the left shows that most of the energy that we use today ultimately came from the sun.  Other energy comes from deep in the earth (geothermal energy), and from nuclear reactions.  Scientists tell us that solar energy actually comes from nuclear fusion reactions on the sun.

Energy comes in several different forms.  One form of energy can be transformed into another.  For example: our bodies transform the energy stored in the food we eat into energy to do work (walk, run, think, read, write, etc.). 

Come with us as we explore energy in our world!  How is energy measured?  Changing energy.  Conservation of energy.  Stored and moving energy.   Green, alternative, renewable, free energy; and much more. . .

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