Tools - what does it do?
Helmet - protects head from impact
In a car
Rice
Ear muffs - protects ears from loud noises
In the kitchen
Watermelon
Fire Extinguisher - Protects people from fires. Put's out fires.
At the beach
Homework
Air bags - cushions car impact.
On a plane
Playground
Glass breaker - Breaks glass if people need to escape.
When cooking dinner
Dolphin