At higher temperatures, a magnet is shown to rest on top of the superconducting pellet. Once the pellet is cooled sufficiently, the magnet levitates above the pellet.
Phases / Phase Transitions / Diagrams
Balloons are placed on the tops of two Erlenmeyer flasks, one containing boiling water and the other containing hot air. As the flasks cool, the balloon on the flask of water is drawn into the flask.
Mercury(II) iodide is heated to convert it from its red low-temperature alpha form to its yellow high-temperature beta form.
When the beta form of mercury(II) iodide cools to below the transition temperature of 126°C, it returns to the red/orange alpha form.
When memory metal is bent, it deforms. When placed into hot water, the metal "remembers" its original shape.
As the temperature of the benzene increases, the meniscus flattens, then disappears as the system reaches the point where liquid and vapor are in equilibrium.