Drag ice cubes from the left beaker to the right beaker on the burner. The burner is always on. After 2-3 seconds, the temperature will start rising from 0°C. Watch as the ice melts into water, and then turns into water vapor at 100°C. The water level will decrease as vapor is produced. The burner will automatically turn off when all water has vaporized.
Particles are tightly packed. Solids have a fixed shape and volume.
Example: Ice cubes
Particles can move past each other. Liquids have a fixed volume but take the shape of their contain.
Example: Water
Particles move quickly and are far apart. Gases have no fixed shape or volume.
Example: Water vapor