This science inquiry experience involves a 5-and-a-half-year-old child, name Odin. As a model railway enthusiast, Odin can name every character in Thomas the tank engines. Quite often, Odin says he wants to be a train driver like Diesel engines drivers in Thomas the tank, where, these animation drivers drive and maintain the engines, and keep the engines in control. Odin regularly builds intricate train tracks consist of bridges and tunnels, which he pushes the train along quietly. As a quiet child, Odin displays curiosity in activities such as water play and chemical reactions, for example, watching lave erupts from baking soda and vinegar volcano, and guessing objects sink or float. Thus, Fun with liquids experience is another fun activity