What is Energy?

All the energy we use comes from the earth. The electricity we use every day doesn't come directly from the earth, but we make electricity using the earth's resources, like coal or natural gas. Energy makes possible to do our work. Oil, coal, natural gas, wind and water, just to name a few, provide us the energy we need in our daily lives. We use oil to produce gasoline for our cars. We use natural gas, coal, solar and wind power to generate electricity that makes the computer you are using work.  There are two forms of energy, renewable energy and non-renewable energy.