Renewable energy comes from sources that can be used over and over, like sunlight, wind, water (hydroelectric), heat from the earth (geothermal), and plants (biomass). Non-renewable energy comes from things like coal, oil, and natural gas. These will eventually run out and can pollute the environment.

To save energy, you can use energy-saving light bulbs, turn off electronics when not in use, and set your thermostat lower in the winter and higher in the summer. Walking, biking, or using public transportation instead of driving alone also helps save energy. Supporting renewable energy and recycling can also make a difference.