What Is Geothermal Energy The phrase "geothermal energy" has been around for hundreds of years. The term "geothermal" derives from the Greek words; geo (meaning earth), and therme (meaning heat). This instantly gives us the quick definition, "geothermal energy is heat from the earth".A common misunderstanding of geothermal energy lies in the source of this heat. The two sources which heat our earth are the earth's core,...... Similar Editorial : by Sasha James. | Source : Science Lesson Plan
