Looking for an easy way to keep your kids sharp over the summer months and also help fight world hunger? Then FreeRice.com is for you. For each word you answer correctly, they donate 20 grains of rice through the UN World food Program. From its launch in October 2007 until May 27, 2008, Free Rice has raised 34,551,828,550 grains of rice and fed people in Bangladesh (video clip), Cambodia, Uganda and Nepal.

So what are you waiting for? Start answering vocabulary words and watch your bowl fill with rice. Your kids can spend the summer feeding their minds and feeding hungry people all over the world. Then, why not work it into your homeschool curriculum for next year? It's free, it's fun and it's a great cause!