Physical and chemical Changes

Front

What is a chemical change?

Back

A chemical change is when you can't change a state of matter back to what it was before after you changed it.

Front

What is a physical change?

Back

A physical change is when a substance changes its form or appearance but not its chemical composition.

Front

What happens to water when it freezes?

Back

Water turning into ice is a physical change.

Front

What is the boiling point?

Back

The temperature at which a substance changes state from a liquid to a gas.

Front

What is the melting point?

Back

The temperature at which a substance changes state from a solid to a liquid.

Front

What is a freezing point?

Back

The temperature at which a substance changes state from a liquid to a solid.

Front

Is ripped paper a chemical or physical change?

Back

Ripped paper is a physical change.

Front

Which of the following is a physical change: burning match, vinegar in baking soda, melting butter, cooking an egg?

Back

Melting butter is a physical change.

Front

What is an example of a chemical change?

Back

An example of a chemical change is burning wood.

Front

What is an example of a physical change?

Back

An example of a physical change is dissolving sugar in water.