Materials science, teaching

Multiple phases. Natural or artificial (manufactured) solids can be composed in several phases. The quality of the dispersion of these phases one in the other will allow the analyst to benefit from similar test samples within the entire batch of material. Material sciences teach us that the degree of homogeneity of the mixture will depend on the nature of the mixed phases and, in particular, the size of the solid particles, the particle size distribution and the respective density. The more similar the density and the particle size, the better is the achieved homogeneity. To achieve similar test samples, even for very small particle sizes, requires a narrow particle size distribution. Muntau et al. [29-30], Griepink et al. [31] and Pauwels et al. [32] have studied the relation between particle size and minimum sample intake. They have demonstrated that a major factor for homogeneity of small sample intakes is the low particle size of the solid material and their size distribution. This aspect will be discussed in more details in the section on homogeneity testing. 

Abad, 2006 Craft Miller, 2007). Nevertheless, there is a great lack of tested and evaluated material and teaching experience, especially concerning conceptual change and the debates about the nature of science (NOS) in science education where little attention had been paid to the development and evaluation of sophisticated teaching... 

General Chemistry as a Curriculum Pressure Point Development of Teaching General Chemistry A Materials Science Companion... 

Antonio Domenech-Carb6 (Valencia, 1953) holds a PhD in Chemistry (University of Valencia, 1989) and is currently a Professor in the Department of Analytical Chemistry of the University of Valencia (Spain). His research is focused on supramolecular electrochemistry, electrochemistry of porous nanostmctured materials, and electroanalytical methods applied to the conservation and restoration of cultural heritage, as well as educational problems in science teaching. He has published more than 150 articles in scientific journals and monographs. He was a recipient of the Demetrio Ribes award (Valencian Regional Government) in 2006. 

Ellis, A.B. Geselbracht, M.J. Johnson, B.J. Lisensky, G.C. Robinson, W.R. Teaching General Chemistry. A Materials Science Companion American Chemical Society Washington, D.C., 1993 pp. 15-23. 

A material, which science teaches to present the most lustrous surface, which iB solid, Imperishable, and admirably qualified for the application of varied and brilliant colors, offers such inducements to the painter for the practice of his art, that the pencil of the glorious Baffaelle himself was occasionally employed In its decoration,... 

H. Sevian, S. Miiller, H. Rudmann, and M. F. Rubner, Using Organic Light-Emitting Electrochemical Thin-Film Devices to Teach Materials Science, ... 

Donovan, W. J. and M. B. Nakhleh (2007) Student use of web-based tutorial materials and their understanding of chemistry concepts. Journal of Computers in Mathematics and Science Teaching 26(4), 291-327. 

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