Hoffman-Bram, Shawn. "States and Physical Changes of Matter". OER Commons. Institute for the Study of Knowledge Management in Education, 13 Nov. 2014. Web. 17 Jul. 2024. <https://oercommons.org/authoring/6404-states-and-physical-changes-of-matter>.
Hoffman-Bram, S. (2014, November 13). States and Physical Changes of Matter. OER Commons. Retrieved July 17, 2024, from https://oercommons.org/authoring/6404-states-and-physical-changes-of-matter.