How do scientists use the states of matter to create new inventions? Scientists care about the state of matter so they can explain why things happen or how to develop new uses. Meet a material ...

There are three main states of matter: solid, liquid and gas. When a substance changes state, this is a physical change because no new substances are produced and the change is reversible.

Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by the Friends of Idaho Public Television and the Corporation for Public Broadcasting ...

With input from two Nobel laureates, the curators of an innovative art exhibition in New York state are spotlighting the 10 molecules of the 20th century that have most profoundly altered our world.