What is the process of sharing ideas, information, and opinions?

Communication

If we examine the communication process closely, we find there are seven elements that transpire in a split second of a conversation: Source/Sender, Encoding, Message, Channel, Decoding, Receiver, Feedback.

you can read more at this link: https://online.pointpark.edu/public-relations-and-advertising/communication-process/

Substances can change phase—often because of a temperature change. At low temperatures, most substances are solid; as the temperature increases, they become liquid; at higher temperatures still, they become gaseous. The process of a solid becoming a liquid is called melting.