ELI5: Explain Like I'm 5

Gasoline

Gasoline is a type of liquid that helps power cars and other machines. It is made up of chemicals like hydrogen and carbon and it is found in deposits in the Earth. When the gasoline is put into a car, it mixes with air to create a spark that helps power the car. When the spark mixes with the air, it creates a small explosion which pushes the pistons in the engine and makes the car's wheels turn.