Cool facts
Energy converter. An engine takes one kind of energy, like burning fuel or electricity, and turns it into mechanical energy that can move things.
Heat to motion. Many engines burn fuel to create heat, which pushes parts and creates the movement that powers cars, planes, and boats.
Motors too. The word 'motor' is often used for engines that run on electricity instead of burning fuel.
Everywhere you look. Engines power cars, motorcycles, lawnmowers, ships, and rockets, making them one of the most important machines ever invented.