Front

What is the law of conservation of mass?

Back

Matter can be neither created nor destroyed in a chemical reaction.

Front

What is wafting in a science lab?

Back

A technique used to gently direct the odor of a substance towards your nose to safely smell it.

Front

What is a physical change?

Back

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

Front

What is a chemical property?

Back

A characteristic of a substance that can only be observed during a chemical reaction.

Front

Give an example of a physical change.

Back

Melting ice.

Front

What is combustibility?

Back

The ability of a substance to catch fire and burn.

Front

What is an example of a chemical change?

Back

Rusting of iron.

Front

What is solubility?

Back

The ability of a substance to dissolve in a solvent.

Front

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

Back

A physical change does not alter the chemical composition, while a chemical change does.

Front

What is an example of a chemical property?

Back

The ability to burn.