Fact 1: Abattery converts chemical energy into electrical energy.

Fact 2: Check the fire alarm's batteries the first of each month.

Given the two facts above, answer the question "What converts chemical energy into electrical energy?" with the following options: 
- Something in a fire alarm
 - sperm and egg fuse
 - Males and females
 - igniting fuel and oxidiser
 - The bending of a ray of light
 - basic building blocks of life
 - sensory neurons
 - mechanical waves


 

 Something in a fire alarm        