05 - Earth's energy - 2 class periods

chemical energy, energy, fuel, kinetic energy, Law of Conservation of Energy, potential energy, what do we use energy for, non-renewable energy, renewable energy, fossil fuels, hydrocarbons, coal, oil, gasoline, natural gas, pollution, fracking, conduction, convection, radiation, solar energy, water energy, wind power, geothermal energy, biomass burning, nuclear energy