You can use home area network monitors to conduct experiments in your home or business. You can see how much it costs to run a variety of electronic equipment and check the usage of major appliances like an electric oven or clothes dryer.
You can also determine how much energy your home is using 24/7. Try going through your house and turning off lights and equipment that you can do so safely. The remaining electricity you see are for appliances that always run (such as your refrigerator) and what is called “vampire load.”
Here are two experiments you can try with your kids. First, make sure your monitor is plugged in and working. If you have a portable device, make sure it has fresh batteries.