Describe three physical changes water can go through

1. Ice melting involves a change from a solid to a liquid and the substances maintain the properties of water because the molecules never change.

2. Water boiling is a physical change as water molecules vibrate faster, they enter the gas phase and become water vapor.

3. Dissolving sugar in water is a physical change. The solid sugar never loses its properties, the molecules become separated by water and the sugar can easily be recovered by evaporating the water.

They are all full and don't need any more electrons in there outer shell.

B. a graduated substance