Identify Chemical and Physical Changes

A process where substances combine or break apart to form new substances, often indicated by changes in color, temperature, or the formation of gas or precipitate.

A change that affects one or more physical properties of a substance without altering its chemical composition, often reversible.

Indicators include changes in color, temperature, the formation of gas, or the formation of a precipitate.

A solid that forms out of a solution when two liquids are mixed together.

Rust forming on iron when it reacts with oxygen and moisture.

Melting ice into water.

A chemical change results in new substances being formed, while a physical change does not change the chemical composition.

It means that the substance can return to its original state after the change.

A change in state, such as melting or freezing, without forming a new substance.

Energy is either absorbed or released during a chemical change.