Materials undergo Physical Change
A physical change is a change of form of a material. It includes changes in size, shape, temperature, volume, and phase of matter. Cutting or trimming is an example of physical change
Phase change in Materials
Phase change is the phase of matter, occurs when heat is absorbed or released by an object.
Liquefication or melting occurs when solid turns to liquid.
Vaporization occurs when a liquid such as water, absorbs heat until particles of matter to be energetic enough to escape gas.
Sublimation occurs when sublimation of heat transforms a solid directly into a gaseous state without passing through liquid state.
Condensation occurs when water vapor, the gaseous form of water gives off heat, allowing it to changed its liquid state.
Solidification or freezing occurs when liquid turns into a solid.
Deposition happens when a gaseous matter changes directly into a solid when heat is removed without passing through a liquid phase.
Materials undergo Chemical Change
Chemical change is the result of a chemical reaction.
Foaming/ Fizzing - Gas bubbles form when mossy zinc is dropped in hydrochloric acid.
Formation of Participate- When milk and vinegar are combined, a precipitate is formed. A precipitate is a solid substance that is produced when two liquids are combined chemically.
Change in smell- Bacterial action changes the composition of food. This action creates a foul smell that comes from spoiled food.
Production of Heat- Heat and light are given of when a matchstick strikes its pad.
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