Physical vs. Chemical Changes

Front

What is a chemical change?

Back

A change where one or more new substances are created.

Front

What is a physical change?

Back

A change that does not create new substances, such as melting or freezing.

Front

What is an example of a chemical change?

Back

Rusting of iron, burning wood, or baking a cake.

Front

What is an example of a physical change?

Back

Dissolving salt in water or melting ice.

Front

What happens during a chemical change?

Back

Substances combine or break apart to form new substances.

Front

What is a new substance?

Back

A substance that is formed as a result of a chemical change.

Front

Is dissolving sugar in water a physical or chemical change?

Back

Physical change.

Front

What is a mixture?

Back

A combination of two or more substances that retain their individual properties.

Front

What is a solution?

Back

A homogeneous mixture where one substance is dissolved in another.

Front

What is a quantitative observation?

Back

An observation that involves a number or measurement.