Physical and Chemical Changes

Front

What is a mixture?

Back

A mixture is 2 or more different things combined.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed without changing its identity, such as salt dissolved in water.

Front

What is evidence of a physical change?

Back

Evidence of a physical change includes a shape change.

Front

What happens when wood burns?

Back

When wood burns, it undergoes a chemical change, producing heat and ashes.

Front

Is milk going sour a physical or chemical change?

Back

Milk going sour is a chemical change.

Front

What is a physical change?

Back

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

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

Give an example of a physical change.

Back

An example of a physical change is ice melting into water.

Front

Give an example of a chemical change.

Back

An example of a chemical change is rust forming on iron.

Front

What is the difference between a physical and chemical change?

Back

A physical change does not create a new substance, while a chemical change does.