The Tip of The Iceberg

Do you know the saying, “It’s just the tip of the iceberg!”? This expression is used to mean the problem is bigger than what can be seen, because about 87% of an iceberg is below the surface. A Scientific Experiment. • Fill a balloon with water, tie the end to seal. • Put the balloon in a plastic bag and place in the freezer overnight. • Remove the frozen balloon and carefully cut the balloon away, uncovering the ice. • Place in a glass bowl filled with tap water. • Observe how the iceberg floats. How much of the iceberg is above the waterline? How much is below?