Physical and Chemical changes

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, involving a rearrangement of atoms.

Front

Give an example of a physical change.

Back

Melting ice is an example of a physical change.

Front

Give an example of a chemical change.

Back

Burning wood is an example of a chemical change.

Front

What are some indicators of a chemical change?

Back

Indicators of a chemical change include color change, temperature change, gas production, and the formation of a precipitate.

Front

Is frying an egg a physical or chemical change?

Back

Frying an egg is a chemical change.

Front

What happens to the chemical bonds during a chemical change?

Back

During a chemical change, chemical bonds are broken and new bonds are formed.

Front

What type of change occurs when a firework explodes?

Back

An exploding firework is a chemical change.

Front

What type of change is baking cookies?

Back

Baking cookies is a chemical change.

Front

What is the difference between a physical change and a chemical change?

Back

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