This science worksheet printable or Google format is a good opening activity for students to better understand what renewable energy sources are. Topics covered include tidal energy, wave power, photovoltaic (PV) solar power, wind power, hydroelectricity, fractionation, geothermal energy, biomass, compressed natural gas, and nuclear power.Definitely, a resource for high school level students, since it goes into some more in-depth content.The reading guide asks several guided questions for note-t