Need an understanding of STEAM and Early Childhood Education.

Select one of the STEM subject areas (science, tech, engineering, Math) – select science please
and, using your topic, my topic is weather
describe a topic-related activity that combines the STEM area that you selected with an art element.  so use this https://teachpreschool.org/2012/03/10/clouds-in-jars-and-on-the-table-top-too/  for the science project.  and then http://www.housingaforest.com/rain-painting/ for the art addition.

Please have this be for 3-5 year olds.
What role does the art segment of the activity play in enabling the children to grasp the lesson concept(s)? Imagine that you are extending this activity to include all of the families in your class and the larger community. What strategies could you use to engage families and the community in your class STEAM activity? Be creative and think big!