Water droplets form on the jar because the air near the jar is cooled by the ice-cold jar.
(Water droplets; form; because the air near the jar is cooled by the ice-cold jar) (the air near the jar; is cooled; by the ice-cold jar)
Water droplets the air near the jar
form is cooled
because the air near the jar is cooled by the ice-cold jar
by the ice-cold jar