Using soda straws to demonstrate stability principle and thermal expanction of liquids

With the help readily available matetial like soda straws, the experiments stability principle and thermal expanction of liquids. The stability principle states that a a body remains stable as long as vertical line from its center of gravity remains within its base. For the thermal expansion of liquids the liquid should be indirectly heated using a hot water bath (Kishore , 1999).