Physical and Chemical Changes

Front

What is a physical change?

Back

A change that does not result in a new substance, such as melting ice or cutting paper.

Front

What is a chemical change?

Back

A change that results in the formation of a new substance, such as baking a cake or rusting iron.

Front

What is a mixture?

Back

When two or more substances combine, but do not form anything new, like salt and pepper or trail mix.

Front

What is mass?

Back

The amount of matter in an object.

Front

What is a physical property?

Back

A characteristic that can be observed directly or measured, such as mass, size, shape, color, texture, and volume.

Front

What is a chemical property?

Back

A characteristic that describes how a substance interacts with other substances, such as flammability or reactivity.

Front

Can you give an example of a physical change?

Back

Melting ice, breaking a glass, or dissolving sugar in water.

Front

Can you give an example of a chemical change?

Back

Burning wood, cooking an egg, or mixing vinegar and baking soda.

Front

What happens to the substances in a physical change?

Back

The substances retain their original properties and can often be separated back into their original form.

Front

What happens to the substances in a chemical change?

Back

The substances change into new substances with different properties and cannot be easily separated.