Description

This is an awesome discrepant event for your most advanced density students! When this solid object is placed in water, it initially sinks. But wait about 60 seconds, and it mysteriously floats to the surface. When removed and placed in different water, it continues to float initially and, in about 60 seconds, mysteriously sinks. Why? How can this be? Great for demonstrating how temperature can affect an object's density! In the experiment described above, the first beaker contained hot water from the tap; the second beaker contained ice water. Set of two. Colors may vary.