Because water means life to all of us who live in the desert, the HydroSmarts Program was created to get children and their families thinking about water. Become a HydroRanger and learn ways you and your family can use water wisely. Through HydroSmarts, you'll also learn why we need to conserve and protect this essential resource. Last time, HydroRangers learned how it takes water to make a cave. It also takes water to keep a cave alive.
Cave formations can only grow in a very humid environment.
Drip by drip, mineral rich water forms fantastic formations. The first Earth Day happened in 1970, when U.S. Senator Gaylord Nelson decided that we needed to clean up our act. He wanted a day to celebrate our planet and bring awareness to all the problems we cause with pollution. Today, the tradition continues as people everywhere get together on Earth Day and help find ways to keep our planet healthy for generations to come. On Saturday, April 21, learn all sorts of ways you can help our planet by going to the seventh annual Earth Day Festival and Parade in downtown Tucson.