Physical and Chemical Changes in Matter

Front

What is a physical change?

Back

A physical change is a change in which no new substances are formed. Examples include melting, freezing, and dissolving.

Front

What is a chemical change?

Back

A chemical change is a change in which new substances are formed. Examples include rusting, burning, and cooking.

Front

Is steam from a teapot a physical or chemical change?

Back

Steam from a teapot is a physical change.

Front

What happens during melting?

Back

During melting, a solid turns into a liquid without changing its chemical composition.

Front

What is condensation?

Back

Condensation is the process where water vapor turns into liquid water, often seen as drops on a cold surface.

Front

Is melting butter for popcorn a physical or chemical change?

Back

Melting butter for popcorn is a physical change.

Front

What is an example of a chemical change?

Back

An example of a chemical change is opening and shaking a hand warmer packet, which produces heat.

Front

Which of the following is NOT an example of condensation?

Back

A bucket of water left uncovered eventually becomes empty is NOT an example of condensation.

Front

What is an example of a physical change?

Back

An example of a physical change is ice melting into water.

Front

What occurs during a chemical reaction?

Back

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