Morris Green passed the matriculation examination of the University of the Cape of Good Hope at Grey College, Bloemfontein, in 1906. The next year he passed the university's first examination in mining for the BSc degree at Grey University College, Bloemfontein, but does not appear to have continued his studies, at least not in South Africa.
Green became an associate of the Chemical, Metallurgical and Mining Society of South Africa and published some papers in the society's Journal: "A research upon a refractory gold ore" (1912/3, Vol. 13(3), pp. 84-101), "The action of oxidisers in cyaniding" (1912/3, Vol. 13(8), pp. 355-359), and "The effect of charcoal in gold bearing solutions with reference to the precipitation of gold" (1913/4, Vol. 14, pp. 257-263). In 1917 he became a member of the South African Chemical Institute and was still a member in 1922.