Electricity So Far

So far I have learned electricity is energy used for lights and to power objects. I learned electricity can be measured in volts, watts, or amps. I also know electricity can be harnessed many different ways. For example electricity is harnessed mainly through burning coal but there are also other ways such as nuclear,solar,hydro-power and windmills can also be used to harness electricity. That is what I know so far about electricity.