Links for homework...

http://www.eia.gov/kids/energy.cfm?page=hydropower_home-basics
HYDROPOWER

http://www.eia.gov/kids/energy.cfm?page=solar_home-basics
SOLAR

http://www.eia.gov/kids/energy.cfm?page=wind_home-basics
WIND

http://www.eia.gov/kids/energy.cfm?page=electricity_home-basics
ELECTRICITY

http://www.eia.gov/kids/energy.cfm?page=hydrogen_home-basics
HYDROGEN