Alpha radiation is a type of energy released when certain radioactive elements decay or break down. For example, uranium and thorium are two radioactive elements found naturally in the earthâs crust. Over billions of years, these two elements slowly change form and produce âdecay productsâ such as radium and radon.
Before the big race, a two week Kentucky Derby Festival takes place with events for the whole family. Then, as usual, the race will take place on the first Saturday in May 2016. On the big day, the contenders will line-up to race around a 1.25 mile track.
American Pharoah won Saturday's Kentucky Derby beating Firing Line and Dortmund. The Preakness Stakes on May 16 will be next for the winner who is trying to become the 12th horse to win the Triple Crown. The last horse to sweep the Kentucky Derby, Preakness Stakes and Belmont Stakes was Affirmed in 1978.