We use a drinking straw, some water and universal indicator to show that breathing out creates acid.

We inflate a rubber glove using the gas produced during a neutralisation reaction.

We use vinegar to remove the shells from eggs without breaking them.

We use mercury(II) chloride solution and potassium iodide to demonstrate a precipitation reaction.

We investigate the conditions needed for rust to form.

We use three chemical solutions to create an oscillating reaction.