Can you fry ice cubes? You can try, but if you heat ice cubes in a pan, they won’t be ice cubes anymore. The ice will melt into water. And after a while, the water will boil and turn into steam. What makes the ice cubes change?
Ice melts because something happens to its molecules. Heat energy makes the molecules move faster. As the molecules speed up, they begin to move away from another. Then the ice changes from a solid to a liquid – water.
Heat speeds up the molecules in liquids, too. So as the molecules speed up, they move even further apart. Finally, they lose almost all their pull on one another. Then the liquid evaporates. It becomes a gas.
And that’s what happens when water boils. Heat makes the molecules roll and tumble faster and faster in the pan. When the water molecules are moving fast enough, they become steam. The molecules of steam mix with other molecules in the air.
Picture Credit : Google