Example 1: When riding a bicycle, wearing a helmet helps protect your head if you fall off the bike.
Example 2: A football player wears a helmet to keep his head safe from other players when he tackles.
Example 3: A construction worker wears a hard helmet to protect against falling tools or materials that could hit their head.
Fun Fact: Helmets come in lots of shapes and sizes, and they are used for different activities like biking, skating, or playing sports!