For more information, visit http://rigb.org/expeRimental ExpeRimental, launching 17 July and brought to you by the Royal Institution, is a series of free short films that make it fun, easy and cheap to do science at home with children aged four to nine. Ignite a child's natural curiosity and explore, question and test some of the fundamentals of science with our hands-on exciting activities. Get involved on facebook: https://www.facebook.com/Ri.ExpeRimental The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook