Physical and Chemical Changes

Front

What is a solid?

Back

A state of matter where particles are tightly packed together, maintaining a fixed shape and volume.

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 change?

Back

A change that results in the formation of new chemical substances, altering the chemical composition of the original substance.

Front

What happens to the particles in a liquid?

Back

Particles in a liquid are close together but can move past one another, allowing liquids to flow and take the shape of their container.

Front

What happens during a chemical change?

Back

Bonds between atoms are broken and new bonds are formed, resulting in new substances.

Front

Is boiling water a physical or chemical change?

Back

Physical Change - The water changes from liquid to gas but remains H2O.

Front

Is burning a candle a physical or chemical change?

Back

Chemical Change - The wax reacts with oxygen to produce heat, light, carbon dioxide, and water.

Front

What is an example of a physical change?

Back

Ripping up paper - The paper's physical form changes, but its chemical composition remains the same.

Front

What is an example of a chemical change?

Back

Fireworks exploding - New substances are formed as a result of the chemical reactions.

Front

What is the state of matter where particles are far apart and move freely?

Back

Gas - A state of matter with no fixed shape or volume.