The Science Alliance

""Magnets"" is Bryant's first word, leading to a legend on the discovery of magnetism. The Science Alliance finds four magnetic materials: iron, steel, nickel, and cobalt. Rex demonstrates the electromagnet and shows how to test what materials let magnetism pass through.

What does Rex have in common with grape juice and the air in a tire? They represent three states of matter. Rex, along with grape juice and tires, get involved in two of the demonstrations in this program. Bryant's Giants of Science salutes Archimedes for his way to easily determine the volume of objects.

We can't see energy, but we can observe what energy does. Rex and Judy show that energy exists in anything that that lights up, heats up, moves, or grows.

Bryant tells the story of Benjamin Thompson, who first discovered heat as energy. Members of The Science Alliance help demonstrate that heat can make matter expand, and that heat travels by conduction, convection, and radiation.