Physical changes Examples
A physical change is any change in matter that involves the substance going from one physical state to another. The reference to a physical state involves solids, liquids, and gases. When a substance undergoes a physical change it does not lose its original properties when changing from one phase to another. The types of physical changes can vary. A substance can go from a solid to a liquid, a liquid to a gas, a gas to a liquid, a liquid to a solid, a solid to a gas, or a gas to a solid.
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. Rubbing alcohol left uncovered will evaporate quickly into the air. It turns to a gas but maintains the properties of alcohol.
4. Hot molten iron is a liquid and when left to cool will from solid steel and can take many forms.
5. 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.
Physical Changes Reading Comprehension
Chemical Changes and Energy
Science Examples for Kids
Examples: Grammar and Science Examples for Kids
Physical Properties Examples
Free Science worksheets, Games and Projects