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. Examples include boiling, melting, and bending.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. Examples include burning, rusting, and exploding.

Front

Is boiling water a physical or chemical change?

Back

Boiling water is a physical change.

Front

What happens to the particles in a solid?

Back

In a solid, particles are tightly packed together and vibrate in place.

Front

What happens during a chemical change?

Back

During a chemical change, bonds between atoms are broken and new bonds are formed, resulting in new substances.

Front

Give an example of a chemical change.

Back

An example of a chemical change is fireworks exploding.

Front

What is an example of a physical change?

Back

An example of a physical change is bending metal.

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not alter the chemical composition of a substance, while chemical changes do.

Front

What is the state of matter where particles are loosely packed?

Back

The state of matter where particles are loosely packed is a liquid.

Front

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

Back

The state of matter where particles are far apart is a gas.