Physics2016-12-012017-11-21https://www.modelinginstruction.org/wp-content/uploads/2018/02/amta-logo-e1518671172616.pngAmerican Modeling Teachers Associationhttps://www.modelinginstruction.org/wp-content/uploads/2016/10/chem-staticchg1-e1480627076556.png200px200px
